I think i jinxed myself, on my way to work tonight i was just cruising at 60 minding my own business when wamo pegged at 10 afr but this time car threw p0101 maf performance. I just cleaned the sensor a week ago but ill clean the sensor again tomorrow and see what happens.
I plan on only running a 3.0 pulley for now but once i get more cooling mods and a new headers/exhaust ill drop it lower.
Last edited by biiibjjjjiiiiii; 12-08-2012 at 01:24 AM.
I just wana update this, I do not believe the problem is tune related. The problem seems to come from the computer thinking the MAF is inaccurate and throwing P0101 MAF performance error, and then since the computer thinks the MAF has failed im assuming it tries to run on the VE maps and since im MAF only tune it goes super rich because the VE is way off. Atleast this is my working theory.
I disabled the p0101 tests on the way home from work tonight and drove around for a while without incident, ill do more testing tomorrow to be sure about this. Now the issue is why I would throw this code, im not sure how likely it is that my MAF is going out at the exact time I make large modifications to my car but it is a possibility. When i checked my MAF i found a little knick in the oring on the sensor, I think im going to replace the MAF just for good measure. Are there any other checks i should do first, so far i know i have no vac leaks and ive cleaned MAF and MAP sensors.
This one I have seen before....
It was on a LSx V8, but the strategy is similar. IF the PCM sees a greater airflow than expected, it will throw this code....and yes it reverts to MAP referenced VE tables (untuned in this case too). The solution is to increase the values in the predicted max airflow tables...but we don't have them as far as I know for the LSJ...so disabling might be the only way. If the MAF were bad...it would run poorly more often I would think. You should have fuel trim error in CL too. Coincidentally, is it following a sizable tip-in?
Last edited by Papa C 2000; 12-11-2012 at 06:57 PM.
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