code p0135 o2 sensor heater malfunction
#1
code p0135 o2 sensor heater malfunction
Hello! I have a 1999 jeep Cherokee classic 4.0 automatic. It sat for a few year and when I bought it from my brother it needed many parts replaced. After replacing the exhaust system(cat back), complete tune up, all new brakes, hubs and u joints, new o2 sensors, I have fixed most problem and codes from the computer but one still remains. It code p0135, I've checked the wiring and the fuses, reset the light but it still comes on and the jeep still hesitates when cold. Any ideas would be greatly appreciated thanks
#2
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Year: 2001
Model: Cherokee
Engine: 4.0
Hello! I have a 1999 jeep Cherokee classic 4.0 automatic. It sat for a few year and when I bought it from my brother it needed many parts replaced. After replacing the exhaust system(cat back), complete tune up, all new brakes, hubs and u joints, new o2 sensors, I have fixed most problem and codes from the computer but one still remains. It code p0135, I've checked the wiring and the fuses, reset the light but it still comes on and the jeep still hesitates when cold. Any ideas would be greatly appreciated thanks
hope it well fix it ,if not its a great thing to do with a jeep sat for few year , at least it may fix hesitates when cold
#3
Thank you for replyin first off, much appreciated. I have already done this procedure and yes it did help dramaticly while driving when the engine was warm. I believe my problem with the hesitation is due to the o2 sensor heater malfuction because its only when it is cold, once the o2 sensor is up to temp it goes away and it drives fine. I haven't checked voltage yet at the sensor but will do so tomorrow. This seems to be a common problem only most of the common fixes aren't my solution.
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#8
So I just realized that the reader actually had two codes stored, p0135 and p0132--which is high voltage and it was on the same sensor bank 1 sensor 1. I was doin some work yesterday and had the battery disconnected so the codes were erased, so I have to wait for it to come back up to do a live read on it. Hopefully soon
#9
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Year: 1999
Model: Cherokee
Engine: 4.0
If that pic of the PDC was helpful, tuck this one way for future use (also applicable to '97 in most cases).
PS: A fuse usually blows for a reason. Examine the upstream O2S wiring as it passes over the intake manifold for chafing. Examine the downstream (CAT) O2S wiring for defects.
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PS2: You may want to enter your Jeep data in your signature as I did. It helps in future posts.
Last edited by CCKen; 04-05-2017 at 12:08 PM.
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