Help Needed IDM Codes

[bfife]

Odd, I just went though a very similar issue, Code 1271 ,high to low side open,
Injectors ohm'd OK buzz test OK, truck ran fine, just the stupid light. I almost bought a new IDM, thinking it had dropped a ground inside. last weekend I decided to swap solenoids just in case and sure nuf the the code traveled! so I ordered up a new solenoid today.

Barney

 

[elkyss81]

Did you guys ohm them hot or cold? Just an FYI, it's best to ohm things out when they are hot or they have been worked. Lot's of times things like that will test good cold, but as they warm up they just get worse and worse.

 

[JLDickmon]

I lept loosing this thread in the mix..
glad you got it fixed..
told you you could do it..

 

[bfife]

Did you guys ohm them hot or cold? Just an FYI, it's best to ohm things out when they are hot or they have been worked. Lot's of times things like that will test good cold, but as they warm up they just get worse and worse.

Yep. ohm'd hot and cold. buzz test hot and after sitting all night. Tried it both ways. My experience has always been that an injector problem will usually show up easier when its cold and the oil is thick. this little number didn't seem to care.

Barney