Hello-
I have been having some issues with the MM. My car has the following mods:
Zack tune
4.10
JLT intake
SW headers & exhaust
Factory COP with GMS connectors
For starters the car has been throwing P0171 and P0174 on and off for a while. I am under the impression it is a vacuum leak somewhere as the car was running fine. Recently the car started stumbling, running rough, and rich exhaust smell at an idle. It would also occasionally stall right after being started. It has gotten worse where the car will now stall if it's let to sit and idle for about 3-4 minutes. It still drives good with no detectable issues until I come to a stop. When it stalls it does not make any funny noises its as if the key was shut off. I scanned the codes and the following showed up:
P0171 lean bank 1
P0173 lean bank 2
P1131 OP2 sensor 1 bank 1
P1151 Heated O2
P1235 Fuel pump out of range
I cleaned the iac real good and reset the codes. Cleaning the iac did not help the stalling at idle. The car seems to run fine in traffic. I have driven it about 70 miles after clearing the codes and the light is still out.
Anyone have any ideas?
I have been having some issues with the MM. My car has the following mods:
Zack tune
4.10
JLT intake
SW headers & exhaust
Factory COP with GMS connectors
For starters the car has been throwing P0171 and P0174 on and off for a while. I am under the impression it is a vacuum leak somewhere as the car was running fine. Recently the car started stumbling, running rough, and rich exhaust smell at an idle. It would also occasionally stall right after being started. It has gotten worse where the car will now stall if it's let to sit and idle for about 3-4 minutes. It still drives good with no detectable issues until I come to a stop. When it stalls it does not make any funny noises its as if the key was shut off. I scanned the codes and the following showed up:
P0171 lean bank 1
P0173 lean bank 2
P1131 OP2 sensor 1 bank 1
P1151 Heated O2
P1235 Fuel pump out of range
I cleaned the iac real good and reset the codes. Cleaning the iac did not help the stalling at idle. The car seems to run fine in traffic. I have driven it about 70 miles after clearing the codes and the light is still out.
Anyone have any ideas?