Engine light on again
Thread Starter
Instructor
Joined: Nov 2002
Posts: 204
Likes: 0
From: Crowley TX
Engine light on again
I keep popping the the p0175 and p0172 codes about once or twice a week. Think I need to repalce the o2 sensors or just have the tuning changed? Mods are in my sig if that makes a dif in your answers.
Last edited by Gimmesum HP; Jan 21, 2005 at 08:33 AM.
Instructor
Joined: Feb 2004
Posts: 131
Likes: 0
From: Ypsilanti MI
Nope, you're not the only one experiencing this.
I too am having the same problem, but my tuner says they will modify
the PCM to correct it. I am not sure what the correction actually is
though. Sorry I could not be more help.
the PCM to correct it. I am not sure what the correction actually is
though. Sorry I could not be more help.
Burning Brakes
Joined: May 2000
Posts: 881
Likes: 0
From: Clearwater, FL, USA
These are fuel trim codes.
P0172 Fuel Trim System Rich bank 1-B
P0175 Fuel Trim System Rich bank 2-B
This happens when the LTFTs are running on the negative side.
This can be fixed one of 2 ways.
Injector scaling or the way I prefer MAF scaling.
P0172 Fuel Trim System Rich bank 1-B
P0175 Fuel Trim System Rich bank 2-B
This happens when the LTFTs are running on the negative side.
This can be fixed one of 2 ways.
Injector scaling or the way I prefer MAF scaling.
