Help! Won't Start After Replacing Fuel Pump Bracket

89 4x4 V6 pickup. When I connected the battery after replacing fuel pump bracket and portion of fuel line, the MIL (Malfunction Indictor Lamp), head lights and instrument lights began to blink. Head lights and instrument lights stopped blinking after blinking 40 times, while MIL kept blinking all the time. I turned the key to ignition position, and engine wouldn't start. The starter didn't even crank. There was not a single sign of engine trying to start. I read out the diagnostic codes from ECM, it's "51".

Any thought about this issue? How to fix? PLEASE PLEASE HELP. Your help is highly appreciated.

Reply to
mixedsig
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Google is your friend. Found this:

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down to code 51, there are several possibilities.Dave

Reply to
davidj92

Thanks for the info. I checked the possible causes (except ECM) of "51", and couldn't find anything abnormal. The repair work I've done seemed to be unrelated to what the "51" code indicates. The thing that confuses me is that head light and instrument light will blink 40 times when I connect battery or open the driver side door, while the red light below emergency flasher switch keeps blinking as long as battery is connected. I couldn't find any information about this symptom. Did anyone see this symptom before? How to fix? Thank you for your help.

Reply to
mixedsig

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