Won't idle

[TSITurbo95]

Ok, so car was running perfect up until now. Did a couple pulls to get my SD table dialed in, and just cruised home. Came to a stop car died. I thought WTF, so I started it and it would not idle, so I had to keep my foot on the gas. Got home, and did some tests. No boost leaks, compression test is 185 across the board, leak down test is 6% between all cylinders, no abnormal noises or anything. This literally just started this morning. Attached is a log, could it be a sensor that is bad? Thanks.

 

[kthackst]

Your VE table jumps from 37% to 55% back and forth throwing your COMBFT all over the place. try to revert back to your old table and see if that helps.

 

[TSITurbo95]

It jumps to 55% because it's idling low. It NEVER idles that low, that why I did not change it.

 

[kthackst]

I am seeing the O2 sensor at .9 saying you are running rich but the ECU is coming back with and AFRESTIMATE of >15.5AFR and the WBO2 can be up to 18AFR and the COMBINE FT are pulling >10% of your fuel. The grams per rev appear to be very high at over .35 at 800ish. Its hard to tell this with all the pedal pressing. STFT are adding 5% (While LTFT Lo is pulling 15% based on COMBINE FT).

Something is pointing to the air isnt being measured correctly and the ECU is jumping all around to compensate.

Reset your fuel trims and start logging LTFT Lo.

 

[TSITurbo95]

Yes, all that is off because of the idle is that low. I had to keep my foot on the throttle to keep it running to get somewhat of a log. I am going to mess with some settings that you stated and test some sensors. . .

 

[kthackst]

Was your foot on the accelerator the entire time? The log only shows it open by ~1%. Did your throttle cable adjustment on the manifold slip? Reset your simulated TPS.

 

[TSITurbo95]

My TPS is adjusted correctly, if you see the tps open, then that is my pressing the pedal.

Also an update, I turned my biss screw out 2-3 full turns and seems to be descent now. Which I still find odd, is that nothing changed but yet I had to adjust the biss? Probably because my ISC has gone bad perhaps?