emanage tuning

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Oct 18, 2011 | 06:05 PM

#31

vbb

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Joined: Sep 2005

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Quote:

Originally Posted by s2konroids

Agree with the deadtime etc of injectors, get a good code reader and monitor you LTFT and STFT's if they are getting in double figures then you have a problem. Only monitor in partial throttle as fuel trims are not applied during WOT.

- xx.x means removing fuel
+ xx.x means adding fuel

I suspect yours are -XX.X as i think over time this is what dictates a CEL code for a rich condition, also look at your o2 sensor - but then your idle would be poor too.

Thanks for the reply/advice. I just had my wideband installed, and my AFRs are normal under WOT, part throttle, and cruising. My cold idle is rich... it's in the 11s until it warms up a bit, then eventually rises to the 13s. Also, my idle after a long period of driving (like it is when you pull off of the highway and come to a stop) is pretty rich as well... back in the 11s. It will eventually lean out as I'm idling, but it stays pretty rich during the span of a normal stoplight. I guess this is an LTFT problem, I don't know. My conclusion is that it's a bit rich, but not OMG I'm going to kill my motor rich, and I'm just going to drive it sparingly and watch the oil until the spring. In the spring, I'm going to get some ID injectors and a retune.