Light

i have jeep Cherokee 2001 V6 and i need your help to fix some problems that am facing.
last time i hooked it up with OBD i found those errors
P0135,P0141,P0155,P0161 and its all about power train O2 sensor Heater Circuits and when it that happen the car start to make funny sound so i just remove the faults and everything back to normal till the next day

Rogue4x4

First thing wrong: it's an inline 6 not a v6...
P0135 o2 sensor heater circuit malfunction bank 1 sensor 1
P0141 o2 sensor heater circuit malfunction bank 1 sensor 2
P0155 o2 sensor heater circuit malfunction bank 2 sensor 1
P0161 o2 sensor heater circuit malfunction bank 2 sensor 2

Check the wiring to the o2 sensors to make sure you don't have an open or a short, and that you're getting voltage, if voltage is good, replace the sensors.

What kind of funny sound did it make?

Light

hhhhhhhhhhh thanks for correcting me... well i will do that as soon as possible.... it was making sound as in like hmmmmm do you know the sound that comes when you do a popcorn will its the same sound but harder and it near the air filter and the car gets weak and as soon as i clear the fault every thing gets normal

Rogue4x4

By the air filter? You mean the intake? Is it backfiring? If your sensors are bad, it's probably running pig rich and unburned fuel is detonating. You need to be more descriptive or post a vid of the sound it's making.

CCKen

Go to the Power Distribution Center (PDC) in your engine compartment and check the fuse marked (in this pic) "O2S RELAYS".

Light

Yes that's right when ever the check engine appears it as you said i hear something like backfiring and that start to happen after i removed the exhaust to change to fix the oil leakage from below

Rogue4x4

You removed the exhaust? See, these are details we need to know...were you getting these codes before you removed the exhaust? If not, go back over your work, make sure everything is plugged in, in the right spots, and check your harness for any breaks or shorts.

Light

no i started to get these codes after removing the exhaust other wise my car was perfect

tjwalker

Job #1 is to take CCKen's advice and check the mini fuse for the oxygen sensor heater system, located in the power distribution center.

The fact that you have codes with the word "heater" on it and have multiple codes for different sensors leads me to believe that you have one common root cause.

And so you don't chase your tail, gotta eliminate that 02 heater fuse before doing anything else.

Rogue4x4

Definitely check the fuse. That's troubleshooting 101. Check the simple things first.

Light

The problem been solved it was a blown Fuse you were right guys


thank you for you help

CCKen

Do I get a cookie TJ...LOL

steelybill

No cookie. But you get one attaboy.....

tjwalker

Yup Ken, you get the cookie!

I've been very low on cookies lately. Gotta up my game!

But in my defense, I did agree with you on this one

CCKen

You'll just have to get up before I do....