Zigatan
New member
- Joined
- Dec 24, 2019
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So we have a 1999 ram 2500 auto. We bought it not running. It appears to have a new vp44 and a new ECM on the engine. It cranks won't start. Glow plug light flashes and I cannot communicate with ECM and there is power at the aldl connector. Trans computer has p1694 which is a bus fault. Is it possible to have a bad ECM? I replaced the entire engine harness because when I started to remove the plug on the computer power returned to the vp44 with the key on. So I assumed the 50 pin harness was bad and just decided to replace it all. I still have a flashing wait to start light and no power at vp44. Not sure where to go now. The ECM is muy spensive. But if that fixes it I would buy it.