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nothing has been done except cold air intake, i know the code now, P1689 (M) No Communication Between ECM And Injection Pump Module Data link circuit failure between ECM and fuel injection pump. Low power, engine derated, or engine stops. is this just a bad wire connection?

ive changed the fuel filter but i still have problems starting my dodge 99 2500. It will eventually start but it takes a while and the check engine light comes on when it doesnt start. are there any other filter or screens that should be changed/cleaned in the fuel system. Lift pump/injectors...

OK, I did the lock-up test. With the OD off 1-2 dropped ~200 rpm and 2-3 dropped ~100 rpm. With the OD on 1-2 and 2-3 were less noticeable but the drop from 3-4 is noticeable with over a 500 rpm drop. Does this tell you anything?

By the way, if it does turn out to be the TC, what do you recomend for an aftermarket TC.

I just did a TC lock up test. I was rollin at about 60 and turned off the OD then put it to the floor. It slowly climbed to 65. It seems to gain speed faster if you ease into it. Which makes me think the torque converter is not locking up. The ATF does look good but I talked to the old owner...

I don't know what my fuel pressure is. The engine is stock. I live in the SF bay area. The ATF looks fine, no smoke and it runs up to highway speeds just fine. The problem is when I hit a hill it just starts loseing speed like a tired old 350 and in towing it is the same thing. Also if it is...

Hello, I have a '95 2500 4x4 that came with my business. Apparently it has not had good towing or hill climbing abillity for over 4 years, also it only gets about 8 mpg. I think it must have a bad torque converter possibly related to the 5th wheel hitch in the bed. It shifts smoothly and the...