Author Topic: No power to fuel pump  (Read 6216 times)

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cm3h2o

  • Offline Dusty Trails
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Re: No power to fuel pump
« on: Sep 18, 2017, 02:55:35 PM »
Afternoon Report,

I replaced the Open circuit relay with one that I know works and no luck, so cool my relay is good.

I used a jumper wire and jumped between Fp and STA on the terminals that connect to my open circuit relay.  Tadaaaa!!! Fuel pump gushing fuel out the open line....

So what the F over... Relay is good but when I bypass it the pump turns on.  There must be another system in the circuit, not allowing the power to go to the pump. 

Next I moved onto the start injector time switch, I measured the resistance as described by my Repair Manual and found 80ohms where it should be 30ohms +-10.  So I guess I have a bad start injector time switch, but what the hell does that do anyway. Would it not cause my fuel pump to turn on???

This is fun its like having a conversation with myself out loud

 
 
 
 
 

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