IDM Conformation - Ford Powerstroke Diesel Forum
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Old 01-17-2012, 04:40 PM
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IDM Conformation

I think my IDM is bad i get kind of bad fuel mileage and our code scanner says IDM fault code. So i cant tell from reading whether i need a specific IDM, just the same voltage IDM (i guess like 100, 120, or 140), or if any 99-03 IDM or even any IDM at all. I want to save some money and get an IDM from the junkyard and trying to make sure it will work. Thanks with any help!!
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Old 01-17-2012, 06:25 PM
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Go on ebay I just bought one for my Truck the way I knew it was bad was the truck would not start and I changed a lot of stuff like cam sensor and other things call Beans diesel they can modify your box
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Old 01-17-2012, 06:27 PM
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I would think if you had a bad idm it would not run. The map sensor and ebp sensor/ tube should be the things I would look at first
The ebp tube clogges up with soot and the sensor gets no reading or a lower reading.
If the map sensor is no reading properly could be a loose harness, vacum leak or bad sensor.
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Old 01-17-2012, 07:50 PM
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Exactly what code did you get? P_ _ _ _??

I would start with the EBP sensor/tube as well, if the IDM is bad, it won't run.

Welcome to guzzle's Exhaust Backpressure Sensor Cleaning Maintenance Web Page
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Old 01-21-2012, 11:15 AM
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Thanks for the ideas everybody. I tried to clean the EBP tube and the fitting is to tight that i will probably would have broke it. I put some blaster on there and letting it sit for a while. I still got to try the Map sensor. I was just going to get an IDM from the junkyard which will probably be real cheap from my local yard thats why i was wondering if any one would work cause they only have one 7.3 in there.
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