RedSmokey
New member
Truck is a 2000 with stock fuel system, 6637 style intake, 4" turbo back exhaust, beans 160/100 injectors and beans tunes. The tunes are for a different PCM code but they are working exactly the same as they pcm they were tuned for. Now I have noticed some rough ideling from tiime to time so I decided to do a contribution test. Fired the truck up and let the oil warm up, tested 2 or 3 times with no problems. Decide to run one more just because, I get cyl 7 fault. Run it again and its gone and passed fine. Ran it again and got cyl 7 again.next test got 7 and 3. Next two tests got just 7. Then the last three tests I ran all came up with 3, 4, and 7. I ran a buzz tests and got code for both banks ( 1 and 2), but it buzzed all 8 injectors and they sounded ok. Is it possible that as the truck itself is heating up, the IDM is starting to go out as it heats up with the truck?