I posted a couple weeks ago that my 05 GT was revving abnormally. I got a lot of good tips and tried a few things.
Details:
Has irradtic idle - when I let off gas it drops to about 2-300 rpms. The car has stalled twice. It ws throwing P0171, P0174 codes for running lean, before custom tune.
Have Demolet CAI with SCT tune (93 Octane), 75 shot zex nitrous.
What I have done:
Cleaned Throttle body
Cleaned MAF sensor
Made sure there were no air leaks, nothing loose on CAI or nitrous setup.
Thought it was in tune had dynoed and custom tuned - worked out all the A/F ratio issues on mid range, no longer throws codes.
I am leaning that it could be one of the following:
1)Fuel Injector
2)TPS
3)Bad MAF Sensor
Sorry for lengthy post but is there anything that I have missed or something else I can do before I have to take this back to stock (and convince dealership nitrous wasn't hooked up) and take back to dealership..??..
BTW...will give out props to the guys at Maximum Velocity ...the new custom tune is better with greater response in the mid range and they cut me a great deal on the Dyno and tuning. I will be going back to get the tune for 150 shot nitrous once I get these issues fixed. I guess the problem isn't in the tune.
Any comments/help appreciated
Details:
Has irradtic idle - when I let off gas it drops to about 2-300 rpms. The car has stalled twice. It ws throwing P0171, P0174 codes for running lean, before custom tune.
Have Demolet CAI with SCT tune (93 Octane), 75 shot zex nitrous.
What I have done:
Cleaned Throttle body
Cleaned MAF sensor
Made sure there were no air leaks, nothing loose on CAI or nitrous setup.
Thought it was in tune had dynoed and custom tuned - worked out all the A/F ratio issues on mid range, no longer throws codes.
I am leaning that it could be one of the following:
1)Fuel Injector
2)TPS
3)Bad MAF Sensor
Sorry for lengthy post but is there anything that I have missed or something else I can do before I have to take this back to stock (and convince dealership nitrous wasn't hooked up) and take back to dealership..??..
BTW...will give out props to the guys at Maximum Velocity ...the new custom tune is better with greater response in the mid range and they cut me a great deal on the Dyno and tuning. I will be going back to get the tune for 150 shot nitrous once I get these issues fixed. I guess the problem isn't in the tune.
Any comments/help appreciated