Minty
05-02-2013, 07:04 PM
So the Jeep is idling around 1100-1300 RPM, from the time it starts to the time its warm and I shut it off. Other than that, it's running well.
Not sure if it's related but, I'm getting a CEL that's coming up as P0138 and P0141 (both: bank 1 sensor 2).
Possible causes are:
138- O2 sensor
-Running rich or lean
-Misfire
-Fuel pressure very high or low
141-O2 sensor
-O2 sensor connection
-Circuit fuse
I only have one o2 sensor, and no cat. Are these codes just for the non-existent downstream sensor? I've replaced my o2 sensor twice to be sure.
I checked my exhaust pipe, and its got quite a bit of soot built up. I'm thinking it's getting too much fuel and running rich? Fuel pressure regulator? Only problem is, on a 96 I guess it's on the pump and has to be swapped out as one unit... which is about $200... I just checked the plugs and they look fine. I'm about to buy a fuel pressure tester to start checking that, just wanted to check with my resident guru's to see if I'm heading the right direction. Oh, and I've already swapped the IAC.
Levi
Not sure if it's related but, I'm getting a CEL that's coming up as P0138 and P0141 (both: bank 1 sensor 2).
Possible causes are:
138- O2 sensor
-Running rich or lean
-Misfire
-Fuel pressure very high or low
141-O2 sensor
-O2 sensor connection
-Circuit fuse
I only have one o2 sensor, and no cat. Are these codes just for the non-existent downstream sensor? I've replaced my o2 sensor twice to be sure.
I checked my exhaust pipe, and its got quite a bit of soot built up. I'm thinking it's getting too much fuel and running rich? Fuel pressure regulator? Only problem is, on a 96 I guess it's on the pump and has to be swapped out as one unit... which is about $200... I just checked the plugs and they look fine. I'm about to buy a fuel pressure tester to start checking that, just wanted to check with my resident guru's to see if I'm heading the right direction. Oh, and I've already swapped the IAC.
Levi