I am working on a 2000 ford f-350 7.3. It has p1668,p0237, and KAM codes. It starts good cold but the service engine light is on. It runs good for the first 15 to 20 minutes. as soon as it is up to running temp the service engine light goes OFF and I lose my turbo. It still runs but it has no boost. The wiring harnesses checked good and I replaced the IDM. The CMP sensor is also new. None of this has changed the problem. Is there anyone out there that has run into this problem? Would the MAF do this if it has a problem or is bad. Like I said, it does good cold and runs like a top for the first 20 minutes, then, dog with no turbo and the light goes off. Holler out if anyone out there has seen this, please.

 

Do you have a boost gauge? How do you know you are losing boost? Could be a MAP sensor issue...

 

Not the turbo. Found hpop was losing oil pressure. I have to replace the pump. The ipr is a known good one. Yer right, wasn't losing boost, was losing fuel. BTW, is anyone on this site looking for a good used IDM and PCM for a 99 to 2002 ford with a standard trans. They were replaced before I got this truck. They were changed to fix this problem, but it didn't because they weren't the problem.

 

Anyone knowif man will work with automic trans? Cus I'm in need of a pcm kinda bad trucks been down like 3 weeks

 

An IDM is interchangeable, but the PCM has to be for an auto due to throttle response and shift points. Is it the IDM or PCM you need?