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Author Topic: ED civic. 6.8 volts at fuel pump. WTF?  (Read 3338 times)

bgdriver

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ED civic. 6.8 volts at fuel pump. WTF?
« on: May 19, 2009, 11:57:41 PM »
As it says, car won't start. 6.8 volts b/t the black and yellow/black wire at the connector. Is it the main relay or a wiring problem or something else?

Thanks!

All fuses have been checked.
« Last Edit: May 20, 2009, 12:39:00 AM by bgdriver »
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1990 civic si
Turbo d16z6 going in.

BoostForLife

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Re: ED civic. 6.8 volts at fuel pump. WTF?
« Reply #1 on: May 20, 2009, 03:25:17 AM »
Just run an 8gauge wire to the pump fromt the wire through a fuse and then have a relay controlling it.
Hopefully your 6.8volts is enough to open a relay for the big ass wire.
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Foowee

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Re: ED civic. 6.8 volts at fuel pump. WTF?
« Reply #2 on: May 30, 2009, 05:37:26 PM »
Have you opened up your main relay?  If not you need to look at the solder joints on the board to see if there are any small rings(cracks). 



http://www.marklamond.co.uk/tech-honda/pgm-fi/main-relay/main-relay.htm

btw a main relay can still be bad even if you hear it click...
« Last Edit: May 30, 2009, 05:39:34 PM by Foowee »
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stealthiskey

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Re: ED civic. 6.8 volts at fuel pump. WTF?
« Reply #3 on: May 31, 2009, 08:53:50 AM »
6.8 volts with the pump unplugged? i.e. no current draw?  :?:

or 6.8 v with the pump plugged in and running?
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