Check Engine Light Rough Running

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Dec 22, 2016 | 01:13 PM

#31

madpogue

Lead Driver

Joined: Oct 2003

Posts: 8,476

Likes: 37

From: Madison, WI

You may not be able to do the CCT until you get that EOT connector fixed. With a bad connector, the PCM might not ever get a good EOT reading so it might never see the minimum 160F.

Sorry, I don't have the EVTM or the truck nearby, so I couldn't tell you if either of those Standard Motor connectors on RockAuto would be correct.

Dec 22, 2016 | 07:58 PM

#32

bruno2

Thread Starter

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Joined: Nov 2009

Posts: 4,575

Likes: 5

From: Broken Arrow , OK

The issue turned out to be the IPR. It was bad. I just swapped that one in when I was having a different issue which turned out to be the P/U tube in the rear tank. I took that IPR apart, cleaned it up, and swapped it in when I was diagnosing it. I didn't change the O rings. I just took it apart to clean it.

So I was ignoring it because it was freshly cleaned within the last 8 or nine months. Turns out it went bad. I bought an O ring kit for my spare here locally. The truck is running like a sewing machine now.

Thanks again for your help!