Stock 2G Pulling Timing

adidalax · Oct 16, 2007

Hey all....

Ever since I bought the car, it's had a slightly (and I mean very slight) rough idle. I'm talking instead of sitting there purring away, it'll randomly *put* here and there. It also seems to hesitate a smidge when I'm boosting.

I've tried new plugs (yes, NGK BPR6ES gapped correctly - I searched and did the reccomended, can't remember off the top of my head what I gapped them at though). Tried new wires (Magnacore). I also changed the fuel filter, and I am still having the issues :confused:

Since I am planning on modding this car, I went ahead and bought a PocketLogger, and it does indeed look like it's pulling timing a little around 5800 RPMs and it also did this @ 6300 or so RPMs on one of the logs. Not too familiar with what the O2 voltages should be because I usually use my wideband (which is out of commission for now

).

Anyone have any ideas? This was on 93 octane fuel & the ambient air was around 76 degrees.

BTW - these are in CSV format, so you should be able to just rename the file from logX.dat to logX.csv and open it in Excel...

spyderturbo007 · Oct 18, 2007

This might help you get some feedback.

Code:

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 <tr height=18 style='height:13.8pt'>
  <td height=18 colspan=3 width=248 style='height:13.8pt;mso-ignore:colspan;
  width:186pt'>10/16/07-20:12:59 - Obd2</td>
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 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl24 style='height:13.8pt'>RPM</td>
  <td class=xl24 style='border-left:none'>Timing</td>
  <td class=xl24 style='border-left:none'>O2 1 Bank 1</td>
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</table>

Code:

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 <tr height=18 style='height:13.8pt'>
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 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>3688</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>9</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.94</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>3784</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>9</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.94</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>3976</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>10</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.94</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>4088</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>10</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.94</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>4196</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>10</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.94</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>4312</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>10</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.94</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>4412</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>10</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.94</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>4504</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>11</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.94</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>4612</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>11</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.94</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>4704</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>11</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.92</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>4800</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>11</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.92</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>4904</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>11</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.92</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>4984</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>13</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.92</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>5092</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>14</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.92</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>5180</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>14</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.92</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>5280</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>14</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.92</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>5360</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>15</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.92</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>5444</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>16</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.92</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>5524</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>16</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.9</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>5652</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>16</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.92</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>5728</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>14</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.9</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>5800</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>14</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.9</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>5880</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>15</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.9</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>6000</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>16</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.9</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>6044</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>16</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.9</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>6092</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>16</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.9</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>6232</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>15</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.9</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>6312</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>15</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.9</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>6368</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>16</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.9</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>6356</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>16</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.9</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>6440</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>38</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.82</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>6152</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>39</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.62</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>5860</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>39</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.62</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>5392</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>28</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.02</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>4984</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>26</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>4208</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>24</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>3564</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>23</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>2988</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>23</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>2432</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>23</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>2836</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>22</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.02</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>2848</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>34</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.04</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>3276</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>34</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.06</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>4088</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>10</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.9</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>3260</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>34</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.06</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>3288</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>34</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.8</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>3256</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>23</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>3192</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>23</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>3108</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>23</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>3036</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>23</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>2956</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>23</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>2884</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>23</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>2824</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>23</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0</td>
 </tr>
 <![if supportMisalignedColumns]>
 <tr height=0 style='display:none'>
  <td width=64 style='width:48pt'></td>
  <td width=64 style='width:48pt'></td>
  <td width=77 style='width:58pt'></td>
 </tr>
 <![endif]>
</table>

Code:

<table x:str border=0 cellpadding=0 cellspacing=0 width=231 style='border-collapse:
 collapse;table-layout:fixed;width:173pt'>
 <col width=64 span=2 style='width:48pt'>
 <col width=103 style='mso-width-source:userset;mso-width-alt:3669;width:77pt'>
 <tr height=18 style='height:13.8pt'>
  <td height=18 width=64 style='height:13.8pt;width:48pt'></td>
  <td colspan=2 width=167 style='mso-ignore:colspan;width:125pt'>10/16/07-20:16:58
  - Obd2</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl24 style='height:13.8pt'>RPM</td>
  <td class=xl24 style='border-left:none'>Timing</td>
  <td class=xl24 style='border-left:none'>O2 1 Bank 1</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>932</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>7</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.24</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>1688</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.8</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>2456</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>24</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.86</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>2520</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>30</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.86</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>2772</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>33</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.86</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>3044</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>18</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.9</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>3304</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>13</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.92</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>3600</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>9</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.94</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>3940</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>9</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.94</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>4516</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>5</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.94</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>4852</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>11</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.92</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>5180</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>13</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>0.92</td>
 </tr>
 <tr height=18 style='height:13.8pt'>
  <td height=18 class=xl25 style='height:13.8pt;border-top:none' x:num>5500</td>
  <td class=xl25 style='border-top:none;border-left:none' x:num>14</td>
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spyderturbo007 · Oct 18, 2007

Sorry for screwing up the formatting on your thread, I was just trying to help out by posting your logs so everyone didn't have to do a bunch of work to view them. I have a thread over in Site Feedback trying to figure out what's causing the formatting problem.

Actually, the first one looks pretty good. There are some 1 degree timing drops but that could be caused by IAT's going over 84 degrees or coolant temps jumping over 206 degrees. Or it could be the ECU droping you in a lower timing map because of increased airflow.

In the second log, it looks like you are knocking because of the 2 degree pull you see around 5600rpm. This could be caused by a number of things, such as boost leaks, bad wires, too large of a plug gap, heat soak, etc.

I was never a fan of Magnecor wires and always liked the NGK's. First set of Magnecor wires I got were crap and must have been arcing somewhere. Ended up replacing them under warranty and the 2nd set was fine. What boost are you running?

adidalax · Oct 18, 2007

Not sure what you mean about the formatting. Thanks for throwing it up here for me. I was tired and being lazy. My bad...

Yeah I just kinda searched around to see what most people were using for wires and plugs. I'm way more of a concepts guy than a nitty-gritty-details guy, so I couldnt remember what gap I put them at or whatever. That's why I just went searching to see who was using what. Is Magnacore a brand? because these were actually Bosch wires...

Right now, I'm only running 16psi. I'm not running a BC yet, just took out the stock BCS restrictor. This crap is kinda driving me nuts, because I want to make sure my car is in good running condition before I start modding it, so I'd like to get small issues like this taken care of first.

spyderturbo007 · Oct 18, 2007

adidalax said:
Not sure what you mean about the formatting. Thanks for throwing it up here for me. I was tired and being lazy. My bad...

I was referring to the extra space that used to be at the top of each log. Snowborder714 was nice enough to get me all fixed up. Makes it much easier on the eyes now.

adidalax said:
Yeah I just kinda searched around to see what most people were using for wires and plugs. I'm way more of a concepts guy than a nitty-gritty-details guy, so I couldnt remember what gap I put them at or whatever. That's why I just went searching to see who was using what. Is Magnacore a brand? because these were actually Bosch wires...

You should pull them and gap them to 0.028" just to be sure. No sense chasing ghosts around until we've checked all the easy stuff. Yes, Magnecor is a brand. I was going by your first post where you said they were Magnecor wires.

adidalax said:
Right now, I'm only running 16psi. I'm not running a BC yet, just took out the stock BCS restrictor. This crap is kinda driving me nuts, because I want to make sure my car is in good running condition before I start modding it, so I'd like to get small issues like this taken care of first.

Have you done a boost leak test yet?

adidalax · Oct 18, 2007

spyderturbo007 said:
You should pull them and gap them to 0.028" just to be sure.

I believe that's what I set the gap at. I'll double check though just to make sure.

spyderturbo007 said:
Yes, Magnecor is a brand. I was going by your first post where you said they were Magnecor wires.

Yeah, I mean, I asked for Magnacore and they gave me a Bosch set of Mag Core wires, so that's why I was asking if they were a brand or what.

spyderturbo007 said:
Have you done a boost leak test yet?

Yes, I did one right after I bought the car, but that was about 10 months ago now. I'll go do another one again, but the thing is, this was even happening right after I did the boost leak test.

adidalax · Feb 21, 2008

SO for any of you who care, I just started throwing the CEL and it's a P0170 code. I'm wondering if all of this is related. Seems that now since I put my exhaust on, I'm throwing the code every couple days now.

First things first - I'm going to go ahead and throw on my wideband and see how rich or lean I'm actually running. & put the data together with a log from PocketLogger & throw it up on here. I just want to see if my O2 sensor is going bad before I buy one...

Anyone else have any ideas?

matthewdesigns · Feb 21, 2008

I throw that code when I run out of fuel. It's a pretty consistant indicator to me of how much I'm taxing the fuel system, since I can't log IDC's on my 2g. You are flowing more air now that you have an exhaust on the car, so the ECU is trying to add more fuel to keep up with the extra incoming air. So, try the wideband, and I'd bet that it will show a lean condition. This could also account for your timing being pulled (lean knock).

The P0170 code can officially point to (this from the factory service manual):

Bad signal from the MAS
Injectors
Fuel pressure
Boost leaks
Coolant temp sensor
IAT sensor
Baro pressure sensor
o2 sensor
Exhaust mani cracks

You might try replacing the o2 sensor, but I never have. As stated above, it's always a fuel thing for me whenever it happens. I either turn down the boost pressure, or add more fuel capacity so I can keep running the higher boost. I was right about where you are now (16-17psi) on the stock fuel system when I started to see this code. A rewire held it at bay for a while, until I wanted a bigger slice of boost. Since you don't have an mbc to adjust the boost, you can do a couple of things. Replace the bcs restrictor, or rewire your pump. Or drive like Granny for a while, until you can dial the fuel up, or the boost down.

spyderturbo007 · Feb 22, 2008

matthewdesigns said:
I either turn down the boost pressure, or add more fuel capacity so I can keep running the higher boost. I was right about where you are now (16-17psi) on the stock fuel system when I started to see this code. A rewire held it at bay for a while, until I wanted a bigger slice of boost. Since you don't have an mbc to adjust the boost, you can do a couple of things. Replace the bcs restrictor, or rewire your pump. Or drive like Granny for a while, until you can dial the fuel up, or the boost down.

Sorry, but you aren't even close.

You have to keep in mind that the ECU only uses fuel trims at idle and light cruse, never at WOT. So, turning down boost pressure won't do anything to fix this problem. Additionally, rewiring the fuel pump won't help either because if you don't have enough fuel at idle, you have bigger problems than the pump not getting enough voltage.

The P0170 trips when the ECU runs out of adjustment range during closed loop operation. At idle and cruise the there is a closed loop between the ECU and the front O2 sensor. Based on the voltage from the sensor, the ECU adjusts the IDC to keep the car running as close to stoich as possible, i.e. AFR = 14.7:1. If the ECU "sees" a lean condition, indicated by an O2 voltage <0.50v, it will increase IDC to compensate. The opposite occurs when the O2 voltage is >0.50v. This is why you'll see the O2 voltage cycling at idle.

The 2g ECU allows for a +/- 12.5% adjustment range on both the LT and ST fuel trims. When these get maxed out the ECU trips the CEL for a P0170. The first thing to check is the O2 voltage at idle with your logger. Chances are that you'll see no voltage from the front O2 at the ECU. The next thing to check is the coolant temp sensor. When the sensor dies, it reports a value to the ECU of -40 degrees. The ECU then thinks that the vehicle never warms up and basically keeps you running pig rich. Keep in mind, that there are 2 coolant temp sensors, one that feeds the ECU and one that feeds the gauge. So, just because your gauge is working, doesn't mean that the one for the ECU is working.

Midnightride · Mar 26, 2008

Are you 5speed or Automatic? If your automatic, keep in mind from factory the car will pull timing at every shift point at WOT.

The Central Hub for DSM Community and Information

Stock 2G Pulling Timing

adidalax

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