Supercharged now Reduced Engine Power @WOT p2102/p1516

[raulv13]

I have been dealing with a vehicle that is having the REP( Reduced Engine Power) when going into higher loads and WOT. It appears to be having Throttle control issues and is causing the vehicle to act sporadic and not drivable only under heavy loads 95kpa+.

Engine: LS2 w/ whipple supercharger 2Bar MAP sensor with Speed Density

Symptoms: Check Engine Light, REP, Throttle control under WOT
P1516 & P2101

Remediation:
P1516 & P2101 ( Engine Diag/ Airflow/ Maxed values to 99%) worked in eliminating REM but DOES NOT fix issue. Airflow Correlation maxed values. Torque management has been Disabled( so i think)

I have been doing tons of research to include the HP forums and no one ever really posts a good solution. I also hear there was a way to trick the ECU into thinking it is a smaller engine so it does not produce such high numbers(torque i am guessing)

Any assistance would be greatly appreciated.

[iom2010camaro2ssrs]

What throttle body? Nick William 102mm TB uses the stock TP sensor & it goes bad, also has to be the "boosted version" for Nick Williams.

[Lakegoat]

You need to go to Engine--airflow--dynamic and make the numbers 8000 and 7900rpm. Engine diag--airflow--Maf--1 and 0. P0101,102,103 to Mil on first error. Your 105kpa column in the Primary ve table and Boost should be the same. You will have to smooth after the change. Not sure what injectors or fuel system that you have, but the numbers do not look correct. If you have the GM 2 bar map sensor, the numbers are 200 and 8 . Yours are a little different.

[Ben Charles]

I just set you up with a Remote tune and you never mentioned a larger throttle body

[Lakegoat]

LOL, My bad. I dreamed it was 102

[lukearmstrong1990]

what injectors?
and fuel

[lukearmstrong1990]

my experience with boosted E40 has seen similar issues.

I believe you have big injectors fitted by the looks of the VE table values and data logs. The MAF isn't failed correctly so its not in SD.

The PCM knows when you're trying to trick it with maxed VE table values and it doesn't like it. it will go into limp mode everytime.

halve your AFR tem, double stoich and populate the VE tables with normal numbers that arent maxed.

[raulv13]

ITS a STOCK TB.. iom2010camaro2ssrs is the one who suggested I had a larger one. NOPE 100% stock, already been replaced the first couple times it threw the 1516/2101 didn't help