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fuel trim tuning....................

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97gst-eclipse

Probationary Member
28
0
Nov 2, 2002
Ok, i received my AFPR from charged air and set the pressure. Now when i log my car it is doing the exact same thing as before. When i log my 02 and fuel trims,, when my o2's go down then the fuel trims go up. On the chart you can see how it goes exactly the oppisite of one another. But everyone says that the o2 should just randomly go everywhere. How am i sopposed to tune the fuel trims if this is happening?

If you would like to view the log just IM me through AOL, thanks.

Also While it goes the oppisite of the o2 1 bank 1, it follows the o2 trim 1 bank 1 very closly. What is the diffrence between the two?

Any my short term trims are around 17 and i know that i am not running lean,, at idle im at about 750-800 f and cruzing is about 1200 f. not to mention the gas smell.......
 
see how my o2 trim follows my fuel trims... if everyone says that the o2's are sopposed to go everywhere at part throttle then wont the fuel trims always be way outa whack?
 
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