louis
July 15th, 2006, 04:14 AM
C5 Corvette running f1-c procharger with 22 lbs of boost and has been running fine for 6 months. Now all of a sudden it seems to be fouling plugs but last time I took them out they were half white and some were half white and half brown. The tips are white also except for a couple the tips look like burnt blue. Never seen this before.
The car starts up and runs fine till it starts running on about 5 cylinders. I finally got a log on it while it was running fine and when it fouled out. Strange it seems like its not getting enough fuel but watching the fuel pressure is a constant 52 lbs.
Couple other times I took the plugs out they really did look brown and fouled. It actually seems like after it warms up and I try to give it throttle is when it fouls even faster. I am thinking also maybe its an issue with closed loop open loop but not sure how to tell and no idea how to setup a forced closed loop or forced open loop. Could it actually be the wide band 02 sensor?
I am running mafless with 3 bar map sensor, 90 mm throttle body, Dart ls1 cnc race heads, lsx intake, 75 lb injectors.
I even changed the pcm thinking it could be the injector drivers but same issue when changed.
Could anyone explain the open loop closed loop setup and where would I post my log file if someone wanted to take a look?
Has anyone ever had this issue?
Thanks in advance for any help.
The car starts up and runs fine till it starts running on about 5 cylinders. I finally got a log on it while it was running fine and when it fouled out. Strange it seems like its not getting enough fuel but watching the fuel pressure is a constant 52 lbs.
Couple other times I took the plugs out they really did look brown and fouled. It actually seems like after it warms up and I try to give it throttle is when it fouls even faster. I am thinking also maybe its an issue with closed loop open loop but not sure how to tell and no idea how to setup a forced closed loop or forced open loop. Could it actually be the wide band 02 sensor?
I am running mafless with 3 bar map sensor, 90 mm throttle body, Dart ls1 cnc race heads, lsx intake, 75 lb injectors.
I even changed the pcm thinking it could be the injector drivers but same issue when changed.
Could anyone explain the open loop closed loop setup and where would I post my log file if someone wanted to take a look?
Has anyone ever had this issue?
Thanks in advance for any help.