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Originally Posted by eastangel28
Just wondering if anybody has any other ideas on what the problem could be. I love my car, and it runs great when it's working properly.
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I feel your pain
Don't discredit the value of cleaning/checking all connectors. Remember, the Intrepid is one of the first heavily computer controlled cars in production. There is a lot of feedback and sensors. The only problem is that the diagnostics are not excellent. The 'code' we all look for are only when there is a fault... no fault, no code. I don't know what triggers a fault, but some systems that are not mission-critical to the vehicle may not be geared to be detected. Keep in mind that you could have one of those bastard inline fuses that has corroded or a wire with a compromised wire sheath. I have seen that before too. During soem conditions, it carries current, and other times it just didn't do it. The diagnstics will let you know if there is unusually high resistance somewhere... it could be the sensore, it the wire itself.
I would recommend having it put up for a full shop diagnostic. Lets say you have a voltage issue on a sensor/connector. I have no exact numbers so I'll make up some for example's sake.
Imagine a sensor that is 5.0v. It has a +- 0.5 v tolerance for normal resting state before the magic check engine light comes on. Say it is corroded and sits with a normal voltage of 4.7v the next sensor in the system is off with 5.4v. The two together are both out, but never fault the system and record a code.
Seeing its an intermittant issue, I would start cleaning every plug connector you can get your hands on if you are not going to have a full diag run on it.
I had an issue with a mustang that resulted in poor performance and rich mixture, no fault was ever flagged, one under full diagnisis, the O2 sensor and another were ot of spec. I replaced them and it was bang-on.