Originally posted by XtremeRS
What firmware did you upgrade to? When an engine is starting to chug or die out, you will notice that the map will get higher(engine pulls very little vac when its running bad)closer to 100 kpa, so that sounds somewhat normal..I would go through ALL of you settings in Megatune to be sure nothing got skewed when you did the firmware change. Sometimes a few settings can get off when upgrading. Especially check the closed loop perameters, as you your o2 settings may have changed, and the ECU is trying to run super lean. Verify you have all the settings the way they should be, then go from there.

I did a couple more datalogs with the same firmware. BTW I was running 029q2 and updated to 029t. From the new datalogs I noticed that the map signal starts to shoot up for no reason and that is what causes the car to shut down.

OK so I fire it up and it warms up fine and idles perfectly stoich for about 3 mins after it reaches OT and then dies. What really gets me is after the car dies I can't start it for about 3 mins...if I try right after it stalls the MS doesn't light up at all so no tach signal or anything. So after I get it started up again the car starts to run really lean and runs for about 2 mins and dies. Again I can't start it up for 3 mins. Again fire it up and now its running really rich and dies after 2 mins of running. Those are the 3 conditions I logged last night. My next step is to convert back to the 029q2.

I mean the only reason I updated it was due to the warmup fix the 029t fixed.

I can post the datalogs I have if you would like.

So any other suggestions due to last nights findings?