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Tuning & Engine Management EPROMS, ECU, MAF, knock, EGT, wideband, datalogging, fuel trims, etc. Read this Forum's Strict Guidelines.

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Old 08-25-2005, 11:15 PM   #1 (permalink)
Proven Member
 
From: Seattle, Washington
Registered: Jul 2004
Posts: 236
Classifieds Rating: (0)
Reputation: V8HAHA is an unknown
Noob to tuning

Ok I am still pretty new to tuning. My car is a 92 GSX, hacked air can, exhaust, boost restrictor removed, stock fuel system, stock turbo. I just put in my afc yesterday and I've been trying to get my O2's up and knock gone. Its not working. No matter how much fuel I add this is as high as the O2's get. On my MMCD logger there is a value labeled "INJD." Is this injector duty? If so I may have a partial Idea what the problem is. At 4500, the INJD is at 81%, at 5300 its at 92%, and by 6000, its at 100%. Does this seem too high? Maybe I am in need of a new fuel filter? Something else blocking the fuel from getting the the engine? The boost is set at stock, plus 2-3 psi for the bcs being gone. Any help?




TIMA O2-R TPS RPM KNCK

23° 0.84V 100.0% 2875 0
21° 0.86V 100.0% 2906 0
19° 0.86V 100.0% 2969 0
18° 0.88V 100.0% 3031 0
16° 0.88V 100.0% 3063 0
14° 0.88V 100.0% 3125 0
13° 0.90V 100.0% 3156 0
13° 0.90V 100.0% 3250 0
12° 0.90V 100.0% 3313 0
13° 0.88V 100.0% 3375 0
13° 0.88V 100.0% 3500 1
10° 0.88V 100.0% 3594 11
8° 0.88V 100.0% 3656 16
9° 0.88V 100.0% 3750 16
9° 0.88V 100.0% 3844 15
10° 0.88V 100.0% 3938 15
10° 0.88V 100.0% 4063 19
7° 0.88V 100.0% 4094 26
7° 0.88V 100.0% 4188 25
7° 0.88V 100.0% 4344 25
6° 0.88V 100.0% 4281 25
6° 0.88V 100.0% 4438 24
7° 0.88V 100.0% 4469 24
7° 0.88V 100.0% 4625 24
7° 0.88V 100.0% 4688 23
8° 0.88V 100.0% 4750 23
8° 0.88V 100.0% 4813 23
8° 0.86V 100.0% 4969 23
9° 0.88V 100.0% 4938 22
9° 0.88V 100.0% 4938 22
9° 0.86V 100.0% 5063 24
8° 0.86V 100.0% 5125 24
8° 0.86V 100.0% 5156 23
9° 0.86V 100.0% 5313 23
10° 0.86V 100.0% 5344 23
10° 0.86V 100.0% 5344 24
9° 0.86V 100.0% 5438 23
11° 0.86V 100.0% 5563 23
11° 0.86V 100.0% 5594 23
11° 0.86V 100.0% 5594 23
12° 0.86V 100.0% 5625 22
12° 0.86V 100.0% 5813 23
12° 0.86V 100.0% 5750 23
12° 0.88V 100.0% 5875 23
13° 0.86V 100.0% 5813 22
13° 0.86V 100.0% 5938 24
12° 0.86V 100.0% 6000 24
12° 0.86V 100.0% 6000 24
12° 0.86V 100.0% 6094 23
12° 0.86V 100.0% 6125 23
12° 0.86V 100.0% 6188 23
11° 0.86V 100.0% 6188 23
11° 0.86V 100.0% 6250 22
10° 0.86V 100.0% 6375 22
10° 0.86V 100.0% 6344 22
9° 0.86V 100.0% 6406 21
9° 0.86V 100.0% 6531 22
9° 0.86V 100.0% 6500 22
8° 0.86V 100.0% 6625 28
7° 0.86V 100.0% 6656 27
6° 0.86V 100.0% 6688 27
6° 0.86V 100.0% 6813 27
6° 0.86V 100.0% 6781 27
7° 0.86V 100.0% 6844 27
6° 0.86V 100.0% 6875 27
6° 0.86V 100.0% 6969 27
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Old 08-26-2005, 02:31 AM   #2 (permalink)
DSM Wiseman
 
From: Bellingham, Washington
Region: Pacific Northwest
Registered: Oct 2004
Posts: 4,025
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Do you have a boost gauge? It seems like you might have a bit more boost than you think or your fuel system is having some issues. You shouldnt be maxing out your injectors with stock boost levels. I would get a boost gauge (if you dont already have one), replace the fuel filter, and rewire the fuel pump, and try logging again.
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Old 08-26-2005, 07:10 AM   #3 (permalink)
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From: Seattle, Washington
Registered: Jul 2004
Posts: 236
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Reputation: V8HAHA is an unknown
Yes I have a defi D boost gauge, but I was trying to hold off putting it in until I have its EGT and oil pressure counterparts...
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Old 08-26-2005, 10:41 AM   #4 (permalink)
DSM Wiseman
 
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From: Kingston, Ontario, Canada
Region: Eastern Canada
Registered: Aug 2002
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So you really have no idea how much boost your running?

Your injectors are maxxed out so obviously you are running to much boost. Install the boost gauge, turn down your boost and get a new fuel pump.


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123.26mph on the Stock 7bolt.
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