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Jeep Wrangler JK
JK General Discussion
Purchased my first jeep. Overheating cats with p0016 code
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<blockquote data-quote="Genesiss" data-source="post: 443815" data-attributes="member: 22628"><p>I got the jeep back today and what aamco advised was the next set of issues.</p><p></p><p>Oil light is on, this is a new symptom and they replaced my pressure switch even though I just replaced it before bringing it into the shop. Oil levels are good. Aamco believes it’s the cmu giving a false reading. The light did go out for part of the ride home and came back after refueling. I would hope they primed the oil pump, the engine does have what the seller refers to as a larger oil pump, perhaps that’s causing the switch issue? No codes for it.</p><p></p><p>All four o2 sensors are giving a p0031, p0057, p0051 and p0037. I can only assume the cats overheating before going to the shop until they were bright red and probably a good 2500 degrees damaged the sensors or the cmu needs replaced. All wiring appears to be connected and intact. The mechanic felt all four going out was unlikely.</p><p></p><p>I also have a p0300 code except again newly rebuilt engine and new plugs so again I’m assuming the cmu.</p><p></p><p>I have heard the fuse panel is also a culprit and common to catastrophic failure. Since I’m ordering a new cmu any opinions on just replacing that while I’m at it?</p></blockquote><p></p>
[QUOTE="Genesiss, post: 443815, member: 22628"] I got the jeep back today and what aamco advised was the next set of issues. Oil light is on, this is a new symptom and they replaced my pressure switch even though I just replaced it before bringing it into the shop. Oil levels are good. Aamco believes it’s the cmu giving a false reading. The light did go out for part of the ride home and came back after refueling. I would hope they primed the oil pump, the engine does have what the seller refers to as a larger oil pump, perhaps that’s causing the switch issue? No codes for it. All four o2 sensors are giving a p0031, p0057, p0051 and p0037. I can only assume the cats overheating before going to the shop until they were bright red and probably a good 2500 degrees damaged the sensors or the cmu needs replaced. All wiring appears to be connected and intact. The mechanic felt all four going out was unlikely. I also have a p0300 code except again newly rebuilt engine and new plugs so again I’m assuming the cmu. I have heard the fuse panel is also a culprit and common to catastrophic failure. Since I’m ordering a new cmu any opinions on just replacing that while I’m at it? [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Purchased my first jeep. Overheating cats with p0016 code
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