This is a discussion on tuning problem?? within the Computer & Tuning forums, part of the LSx Technical Help Section category; i have an 01 formula with cai, lts, catless y, and since i got a mail order tune it has ...
05-25-2010, 05:26 PM #1
- Join Date
- May 2010
- 2001 formula
i have an 01 formula with cai, lts, catless y, and since i got a mail order tune it has been running inconsistant. sometimes it pulls hard and then other times not near as hard. and lately when i push the gas it is just like i hit the rev limiter at 2000 rpm and will not rev any higher. it revs in nuetral no problem. the plugs are whitish grey which makes me think its lean. fuel pressure is fine, but i have ruined 4 02 sensors in about 3000 miles. they are the corvette sensors. any help would be greatly appreciated. i have really hit a wall here.
05-27-2010, 11:14 AM #2
It sounds like you have positive fuel trimming making WOT inconsistent. This can happen when a MAF reports low (on it's way out but won't code) for example.
How do you know the sensors are bad; have you WATCHED them switching and see that they always report low voltage or are you going by codes (which don't necessarily mean that they are bad, depending on the codes)?
Do you have a scan tool that will let you see real-time engine data?
05-28-2010, 03:54 PM #3┌∩┐(◕_◕)┌∩┐
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