Quote:
Originally Posted by bluenavigator
You be the judge/jury - HPOP/ICP - which one is guilty?
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My judgment is that you are guilty of not repairing your truck based on the diagnosis that you paid for. According to the information in this topic, you brought your truck to a dealership where you requested and paid for a diagnosis of your concern. I question why you apparently declined to have the recommended parts replaced? If we assume for the sake of debate that the diagnosis is accurate why have you not made the recommended repairs?
Secondly, I fault the dealership for not providing to you with a complete diagnostic report in writing which should have documented the DTC's (diagnostic trouble codes) retrieved from your PCM and the results of any pinpoint tests performed. After all,
YOU PAID THEM FOR THIS DIAGNOSIS! When I perform a diagnosis for a customer I document that I verified the concern, all relevant diagnostic information including DTC's and test results regardless of whether or not the customer approved or declines the necessary repairs... which brings me to the third part of my post.
If you had this information you would be able to post it here which would be very helpful to the knowledgeable people trying to assist you. If I read between the lines and take a few quotes from your posts I suggest that the recommendation to replace the ICP sensor and the harness connector was the proper one.
"ICP Circuit Malfunction" tells me that there is an intermittent fault in the ICP circuit that is causing inaccurate fuel control and your rough running. The check engine light is consistent with an ICP circuit related code. My guess is the DTC's being set are either a P1280 and/or a P1281. A failing ICP sensor or a poor connection at the harness connector are the most common failures with this particular concern. Since this is very intermittent and therefore difficult to diagnose, replacing the sensor and connector would be your best option because the information that you DO have points to a circuit issue.
Good Luck!
