 Keep Blowing a Fuse!, '74 FI Fuse problem |
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| Trent914 |
  Dec 10 2006, 08:05 PM
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#1
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Newbie  Group: Members Posts: 2 Joined: 10-December 06 From: Sacramento, CA Member No.: 7,345  |
Help! I've got a '74 2.0 with FI that has an electrical problem I can't figure out. The "blue" 25-amp fuse on the relay board keeps going out. I disconnected the fuel pump and checked it, it runs fine.
The car blows the fuse after 20- 30 minutes, shorter in "warmer" weather, a bit longer in cooler weather. Anyone out there have any ideas? Thanks |
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| 904svo |
Dec 10 2006, 09:00 PM
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#2
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904SVO Group: Members Posts: 1,124 Joined: 17-November 05 From: Woodstock,Georgia Member No.: 5,146 |
Check the wires from the control panel to the pump, sounds like there
is a short at times. the insulation may be fraded on the wires. |
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| brp914 |
Dec 10 2006, 09:09 PM
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#3
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Unregistered |
it could be your aar. try unplugging it, although it could be hard to start from cold.
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| ejm |
Dec 10 2006, 09:20 PM
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#4
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I can see the light at the end of the tunnel Group: Members Posts: 2,703 Joined: 3-February 03 From: Massachusetts Member No.: 224 Region Association: None |
(IMG:style_emoticons/default/agree.gif) The auxiliary air regulator is powered off the same circuit. Check the wiring and valve.
QUOTE although it could be hard to start from cold power closes the valve ....it should start the same but may idle low/stall when cold if the valve is stuck closed..... if it's stuck open or has a bad heater you'll have high idle when warm (IMG:style_emoticons/default/welcome.png) |
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| Trent914 |
 Dec 11 2006, 10:29 AM
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#5
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Newbie Group: Members Posts: 2 Joined: 10-December 06 From: Sacramento, CA Member No.: 7,345 |
Thanks for the thoughts, I'll re-check the wires and try disconnecting the aar.
Will let you know. |
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