hi i have a 1993 12valve it had a fuel leak on the side cover of the injection pump so i took it to a mechanic he had to take my injection pump off to fix leak once i got it back i now have no power i went from hitting 30 pounds of boost to now only 15psi ad it also no longer blows black smoke i need help fast it is used every day and it always pulls a trailor could something just be plugged?

 

Take it back to the mechanic and request a fuel pressure test.

 

Have you took it to the dodge dealership and had them check to see if its under the recall?

Also have you tried turning your fuel pin and adjusting the pump yourself?

What work have you done to the engine performance wise?

 

well it has a bd fuel pin just a 50 horse and governor spring that came with and i had him put that spring in when he had my pump off should i maybe switch back to the old pin? and is there any timing involved with the injection pump?

 

You could try swapping back to the old fuel pin and spring but I don't think that's your problem. I know that my truck had an issue with fueling from the gasket not sealing which you can look into and it lost power from that.

Do you have any place that looks like its leaking? Also do you have a pyro gauge and a boost gauge? What kind of intake do you have?

I would check the timing to make sure it's with the factory specs but you shouldn't have to advance it with just adjusting the pump. Other than that you could check out the injectors and see if you need to have them flushed or possibly replace them for aftermarket performance injectors.

http://www.gillettdiesel.com/dodge12vinjectorspod.aspx

If you swap for these injectors I would recommend a bigger exhaust and a BHAF.

Have you checked your fuel pressure?