Continuous problems with my 143K mile TJ

leonardo

leonardo

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Original poster
Joined
Apr 17, 2022
Messages
32
Location
New Jersey
Originally when the problems started I had the following codes: P0455, P0123, P0135, P0155, P0121. Basically its some tps code, evap leak, and o2 sensor codes. These codes came after I cleaned my throttle body and my car wouldn't idle, the rpms would be shaky on idle and would smell like it's running rich. I cleared the codes and none of them cape back except a new code came which was P0108. I drove it for a while and the car read no other codes. So I replaced the map sensor. It seemed like my car was running great. I drove it somewhere about 20 minutes away. On the drive home the check engine light came back. My throttle wouldn't respond well below 1k and the car would shake and the car would stall all the time. The codes where P0108 (the original map code) and P1297 "No Change in MAP From Start To Run". At this point I don't know what to do. I'm thinking it could be a bad computer but I need some other opinions. Thank you if you went through the time to read all of this and help me out.
 
Why did you clean your throttle body? You had no codes before you cleaned it? What did you use to clean everything with? Did you get the throttle body reinstalled properly, no vacuum leaks?
 
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Gollywomper said:
Why did you clean your throttle body? You had no codes before you cleaned it? What did you use to clean everything with? Did you get the throttle body reinstalled properly, no vacuum leaks?
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I had codes before I cleaned the throttle body. Not exactly sure what they were just the car was running like absolute crap it was jerking when it was driving and couldn't idle. Though the IAC valve was dirty so I went ahead and cleaned the whole throttle body and all the sensors.
 
macleanflood said:
Inspect the wiring harness? Especially the notorious spot on the back of the engine where it's anchored with a stud?

-Mac
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C.J. Roberts said:
Replace it with a Mopar sensor. They cost more, our Jeeps don't like ANYTHING else when it comes to sensors.
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He is exactly right....You can just mention another brand of sensor in front of an 06 and it will throw 2 codes-
 
AndyG said:
He is exactly right....You can just mention another brand of sensor in front of an 06 and it will throw 2 codes-
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Is putting a mopar sensor in really going to fix my problem though. The car is constantly stalling and can't idle. The code is for a high voltage in the sensor. I'm not sure but the issue seems electrical.
 
leonardo said:
Is putting a mopar sensor in really going to fix my problem though. The car is constantly stalling and can't idle. The code is for a high voltage in the sensor. I'm not sure but the issue seems electrical.
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I wish I could promise you it would, and I hate to see money thrown at one- at the same time I don’t think we have had a single positive experience here with other aftermarket 02 - sensors - the sensor can give the system some weird info- I haven’t tracked your old thread but PCM issues are prevalent in them later models too- Mark @Wranglerfix Would be good to listen to too.
 
leonardo said:
Is putting a mopar sensor in really going to fix my problem though. The car is constantly stalling and can't idle. The code is for a high voltage in the sensor. I'm not sure but the issue seems electrical.
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One source says they actually create their own voltage so if one’s defective it may could do that- I don’t know a lot about them but if you read how they work they are quite a bit more sophisticated than you might imagine and it’s pretty easy to see if they are made for the specific parameters they operate in and with, they won’t work correct- It is actually amazing that something could live in the environment of heat and exhaust coming out of the engine and communicate to the Jeep’s brain, correctly, for beyond 100,000 miles.

I’ve been chasing a code on an ‘06, and to me the brand name keeps a defective part largely out of the equation...so I just installed NGK and have before- and they have work right every time.
 
AndyG said:
One source says they actually create their own voltage so if one’s defective it may could do that- I don’t know a lot about them but if you read how they work they are quite a bit more sophisticated than you might imagine and it’s pretty easy to see if they are made for the specific parameters they operate in and with, they won’t work correct- It is actually amazing that something could live in the environment of heat and exhaust coming out of the engine and communicate to the Jeep’s brain, correctly, for beyond 100,000 miles.

I’ve been chasing a code on an ‘06, and to me the brand name keeps a defective part largely out of the equation...so I just installed NGK and have before- and they have work right every time.
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But do you think it would be better for me to make sure that there's not a short in my wiring harness before I buy more map sensors? The thing is I'm not exactly sure how to do that and I would have to buy a multimeter but I think it could be the problem because the short could've happened after I clean out the throttle body and all the sensors and put it back on without it drying completely.
 
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