I'm trying to find info on a set of injectors for my D150. It's got a 318 and until now has had the original or OEM replacement Bosch yellow top injectors. I've returned 3 different sets from 3 parts houses because they all run super rich. And I mean dumping fuel. Right now, I have BWD part #57222p injectors in it. And again, they run super rich. What am I missing??

 

if it is running super rich did you ever think the problem may lie somewhere else like the o2 sensor?

 

I would look elsewhere also bit if you want quality injectors it is best to have them rebuilt and tested at a local injector shop. You only have to do that once to know they are not the problem. A TPS or an H2O sensor out of spec can also cause this.

 

An H2O sensor? Must be for the water injection system! Ha. Just messing with you SEAL!

 

I'll try to get the old ones rebuilt. The TPS and o2 are fine. I can swap back to the old injectors and the truck runs better, its just the old ones leak a little bit and the truck wont pass emissions.

 

Swapped out the ECT and thermostat with the new injectors, truck's running much better.