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Thanks guys. that's what i was looking for.:yay:

Has anyone changed their tire size in hptuners to correct any error on the speedometer? Im getting slightly lower profile tires (smaller diameter) and when going to change the tire diameter all i see...

Ill pm you really quick

Okay here's the last log i did. It was a pretty short log and I haven't changed anything on my tune file after running it.

*Sidenote, when going full throttle there seems to be a high Frequency...

I ran the first log and adjusted my LTFT's. (I also made a very minor adjustment on spark timing)

I logged my second log and the LT's stayed at zero most of the time. Afterwords I pasted the MAF...

This log was only about 10 min. It was all in the city and I was using the attached config (GMTECS). It wasn't reading boost and I didn't bother adding it so i just switched to my other config.
(I...

okay that makes sense. I just got off work and am in the process of installing a K&N SRI. I'm going to go for a drive afterwords and try getting my fuel trims dialed in as close as possible. Ill post...

I forgot to say, when starting the car this morning, (cold) it surged and stuttered badly. So it doesn't seem like i got improved results for advancing or retarding my timing.

I retarded the timing around the 20-30% load zone and 600-1000RPM zone. I started the car cold and the idle was much worse. I turned it off immediately. I then went back into my timing tables and...

I just posted in your other thread before seeing your response over here. It looks like my timing advancement is very high in the low RPM and low load cells. And it doesn't show any MAF correction...

Could this be the underlying cause for a rough idle when the engine is cold?? My car idles very rough when first starting it but gets smooth after it warms up. I logged a cold start to see what the...

What did you mess with on the idle timing?? did you advance?? retard?? smooth?? im having A Similar issue.

Which sensor should it be referencing? I'm having the same exact problem on a cobalt ss/tc. Showing boost readings way to high.