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Old 07-13-2019, 10:19 PM
lo_jack lo_jack is offline
Join Date: Dec 2006
Location: Texas
Posts: 840
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That's the plan. Jumper up the pump relay again and then see if I have voltage at the pump connector. If there's voltage and no pumping, she's dead, no?

The only thing I don't understand is if the dme can command pump off in some other electrical failure condition. if it can, then the pump could still be good but the dme says no voltage before the pump relay. In that case, jumper in the pump relay still wouldn't get the pump to go, right?

I've read some other threads that suggest the dme shuts the pump circuit down if it detects some other electrical faults with the engine.
2001 E53 3.0 5pd
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