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92 Honda Civic, no power to fuel pump, but relay checks OK

Asked Mar 6, 2007, 09:48 PM — 3 Answers
I have a 1992 Honda Civic That will start intermittently. A mechanic buddy of mine narrowed it down to the fuel pump not getting power. We checked the main relay and it checked out fine. So we jumped the power bypassing the relay and the pump powered up after that. Stumped with a capital. Oh yeah I forgot to mention that there is a leak that I have not found either. Left about an inch and half of water on the floor boards.

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TxGreaseMonkey's Avatar
TxGreaseMonkey Posts: 15,526, Reputation: 5338
Senior Cars & Trucks Expert
  
#2

Mar 7, 2007, 07:05 AM


1. Check all under-dash and under-hood fuses with a test light or multimeter.

http://www.askmehelpdesk.com/cars-tr...tml#post252145

2. Perform the K-Test on the ECM. If the ECM is failing, the main relay won't function properly.

Read sections A and B in the link below:

http://www.askmehelpdesk.com/cars-tr...ics-46563.html
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troypt's Avatar
troypt Posts: 20, Reputation: 1
New Member
  
#3

May 24, 2007, 10:31 AM
Quote:
Originally Posted by clutchbuster
I have a 1992 Honda Civic That will start intermittently. A mechanic buddy of mine narrowed it down to the fuel pump not getting power. We checked the main relay and it checked out fine. So we jumped the power bypassing the relay and the pump powered up after that. Stumped with a capital. Oh yeah I forgot to mention that there is a leak that I have not found either. Left about an inch and half of water on the floor boards.
It sounds like your heater core went bad. That's what usually is going on when you have water on the floor. For your other question, I'm stumped! Lol Good luck
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TxGreaseMonkey's Avatar
TxGreaseMonkey Posts: 15,526, Reputation: 5338
Senior Cars & Trucks Expert
  
#4

May 24, 2007, 10:46 AM


The water can also come from a leaking heater control valve.
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