94NAIDI
Registered User
Long story short. My wife’s 1997 7.3 powerstroke is having rough start issues. We originally thought it might have bad injectors but I trouble shot that down to 3 bad glow plugs and passenger side valve cover gasket plug has a burnt glow plug contact. I ordered Motorcraft gaskets, UVCH, and Alliant Power pig tails for both sides, and 8 Motorcraft glow plugs. This should fix the rough start issue. However, while troubleshooting, I put my Auto Enginuity scan tool on the truck and performed KOEO tests and pulled codes P1298 IDM Failure and P0605 Control Module ROM Error. But running KOER I do not get either of those codes. Also, this truck runs and drives perfectly fine once started and warmed up. So here’s my question. Could I really have a bad IDM with this truck running so good? Or could it still be bad injectors? Could the UVCH and gaskets possibly be causing these codes? Or are these just old codes that are no longer valid but are still in memory?
I also did the injector Buzz test and the injectors all sounded pretty much the same. They all buzzed at same basic audible level.
I’m trying to get this truck fixed and replace everything that is necessary. But I don’t want to waste money either. If it needs injectors, then I’ll buy them. If it needs an IDM, I’ll get that as well. But if neither is causing a problem, I don’t have money to waste.
What are your opinions on this? A truck that runs and idles perfectly but supposedly has a bad IDM according to the scanned codes. Seems odd to me.
I appreciate any help on this head scratcher.
I also did the injector Buzz test and the injectors all sounded pretty much the same. They all buzzed at same basic audible level.
I’m trying to get this truck fixed and replace everything that is necessary. But I don’t want to waste money either. If it needs injectors, then I’ll buy them. If it needs an IDM, I’ll get that as well. But if neither is causing a problem, I don’t have money to waste.
What are your opinions on this? A truck that runs and idles perfectly but supposedly has a bad IDM according to the scanned codes. Seems odd to me.
I appreciate any help on this head scratcher.