so now....the car is throwing a "P013E" and a "P2199".

Vince said that I have some "issues" to work out. Both of these codes are "tune" related issues to my knowledge. The P2199 is AIT code and the
P013E is related to my catless downpipe.

I thought that's what the purpose of a "tune" was for??? To get rid of any unwanted codes that pop up with you install aftermarket parts and to take full advantage of the performance parts that you install???? Getting really sick of Vince excuses. Excuse..after excuse...after excuse...

 

So how is it running with Trifecta switched off ?

 

It runs good up until those 2 codes come up......

 

keep looking and you will find the answer, any vacuum leaks or intake issues??

 

i showed james that response from vince. he thought that was complete crap. i won't say he couldn't believe cause sadly...he could believe it....and so can i. i am so glad i didn't go trifecta or gms1. i know it sucks but just get hptuners and be done with it. you already know that the tune was the culprit.

on a side note....iirc that maf code means either a boost leak or the maf is blown

 

Bummer. Sorry for issues. I've been running the GMTU for years now, no issues, and solid 24-26 PSI with bolt-ons. HPT is the way to go, with very little work 26-28 is possible through HPT

 

I plan on getting the car reflashed with the original GMS1 tune...that will wipe out all of the Trifecta BS. So...if it cures my few problems...on to HPT I go

There is a REALLY good tuner in my area...(James)....and he can sure make'r run right!!

 

Car is now throwing the P2199 and the P0101 code. IAT and MAF.

I told Vince what was going on and this is his response:

"From my end, you’ve got a highly modified vehicle that throws codes on the stock tune, that has intermittent boost problems relating to the boost pressure sensor, and when we apply a tune to it, has boost fluctuation issues. It’s like trying to build a house on a broken foundation – if you try to tune a vehicle that has problems, you can’t expect it to run reliably. P2199, btw, means there’s a correlation error between the IAT sensor in the MAF, and the IAT2 sensor, in the boost pressure sensor. This should NEVER happen, and usually means there’s a problem with the IAT sensor in the MAF, or the IAT2 sensor in the boost pressure sensor. Given all the other problems you’re having, I’m pointing my finger at that boost pressure sensor. What’s wrong with it? I have no idea. I’m not there."

The CEL doesn't come on...but when I scan it for codes...the P0101 and P2199 come up.

I have replaced the lower MAP sensor in the charge pipe...it's BRAND NEW. As far as the MAF...I completely unplugged it....and it runs the same. So I figured it can't be the MAF sensor. Should I go ahead and replace the MAF sensor too?

 

What about the upper map?

 

I replaced it too, both the upper and lower MAPs are brand new.