dmdreese

So I've analyzed the data and it looks like the "LT FTRM1(%)" is high when the fault is in. I know this is the long term fuel-to-air ration correction factor, but not sure what this means as a diagnosis for the problem. I've been suspecting the bypass valve is intermittantly sticking open, preventing the boost from building and this would affect the FTA ratio. Just not sure if the above data point should go high or low when the bypass valve sticks. Also, the "LT SEC FT3 (%)" goes to -100 when the DTC comes in when its normally sitting at -0.8 with the "LT SEC FT1(%)". Any thougts???

dmdreese

Correction: The "LT FTRM1(%)" is the "Bank 1 Long Term Air to Fuel Ratio Correction Factor"

Also, the other ones are the "Long Term Secondary O2 Sensor Fuel Trim for Bank 1 & 3"

KinseySS

I'm glad I came across this again. Ive had this very same issues for a couple years now but since I got the upgrade so early on there were no other that had the issues. I'm glad I came back here and seems its a simple fix.

Ive taken the car to the dealer 8 times now and they fixed so many things that wasnt causing the problem

Mass Airflow sensor
Blowout Valve solenoid
Wiring harness
Intake Manifold cleaning x 2

it blows me away that they did all this and still couldn't find the problem.

Jeffsmax

I had problems with my SS going into limp mode and the dealer said my K&N air filter was the problem. I couldn't see why so I went back to the factory filter and my problem never came back. Something to do with turbulent air flow?