E38 2009 g8 need help

Evening all,

I currently am having massive issues getting the idle figured out with this car.
2009 Pontiac G8
6.0L
PRC LS3 heads
TSP titan SR3 Intake
TSP F35 Cam
Elite engineering catch can
Tr6 Plugs
10mm TSP wires.

SO i have followed the normal steps to dial in idling, VVE, spark. Multiple checks on plugs, wires and coils. The car continues to have KR register at idle and under low load drives. Desperately need help lining this out. Attached are the current file and a log. Attachment 141965Attachment 141966

Can't view the tune and log currently but make sure there's no contact between parts like headers hitting the subframe or something. To have actual knock at idle would be impressive

Low vacuum and bank 1 trims at +50%...

Is that 83kPa baro reading in line with your elevation?

How could I check baro in line with elevation?

I turned open loop on solely for the weather today. Initially doing VVE and we've since had a 30 degree temp change in a 24hr period. table was within +/- 5%. Hadn't gotten to MAF yet, cause i've yet to figure out this KR issue at idle/low load( below 2200rpm)

83kpa barometric is somewhere north of 5000 feet elevation but less than 6000 feet ;) Didn't know there were any mountains that tall in Texas? Granted your map is reading right?

Ummm, you do know that all of your timing tables are set to one value except for the coastdown table right? Go back to stock on your timing tables then see if the problem is present. You're also like 50 to 60 % lean on bank 1 depending on whether or not the wideband is on that side and then 20some % lean on the passenger bank. I would say go back to stock with everything, add some idle airflow and then very slowly go from there.

Need to check the header tube temps on bank 1. I bet that motor is running on 4 cylinders. Trims are +50% and the B1 O2 is in the dirt. I bet that whole bank the header tubes are cool to the touch. If that bank isn't totally dead it has a horrific vacuum leak or leaks on that side like the intake o-ring seals are completely missing, or the injectors don't fit right in their bores in the intake. Seen that many times. There are 3 different o-rings sizes that I know of.

Tune file is atrocious. I'd recommend you pay someone to do it for you. No offense. Those aren't the "normal steps" to figuring out the idle.

And yeah something is screwy with the baro. Unless you're in Colorado.

Quote:

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Originally Posted by edcmat-l1

Need to check the header tube temps on bank 1. I bet that motor is running on 4 cylinders. Trims are +50% and the B1 O2 is in the dirt. I bet that whole bank the header tubes are cool to the touch. If that bank isn't totally dead it has a horrific vacuum leak or leaks on that side like the intake o-ring seals are completely missing, or the injectors don't fit right in their bores in the intake. Seen that many times. There are 3 different o-rings sizes that I know of.

Tune file is atrocious. I'd recommend you pay someone to do it for you. No offense. Those aren't the "normal steps" to figuring out the idle.

And yeah something is screwy with the baro. Unless you're in Colorado.

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Bank 1 is getting heat and running fine. Injector o-rings are what was is recommended by TSP for the intake and rails. No leaks from what i can see/ trace.

Car was running great before the cam swap. Only change to car has been the TSP cam from a custom grind. spark tables are from being semi middle of the process of working on idle, but i can't get this KR and vacuum figured out, thus why i am here asking those with more experience so i can learn.

These are much "better" log and tune from today where i had some time in SD. Wide band is on Bank2. VVE only, maf failed. Attachment 142011

There's no data log.