1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Fuel pump probs-no power...Help!

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Old Mar 21, 2008 | 02:06 PM
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Kdog's Avatar
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From: NW Georgia
Fuel pump probs-no power...Help!

After checking out the fuel pump I discovered it was not getting any power, what is the best thing to do in this situation? Its fuel injected and and 85 model 1.3L. Not sure if I should just run a new wire or try to locate the problem.
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Old Mar 21, 2008 | 02:22 PM
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How are you checking for power? The 84/85 models have a fuel pump relay and will only power the fuel pump when the car is cranking or running.. For a GSL-SE, turn the key to 'ON' (don't start) and have someone push open the door on the AFM (Air Flow Meter) located under the air filter. With this door open, the fuel pump should have power. Use a voltmeter or a test light to test for power at the pump. If no power, it could be a blown fuse or a bad fuel pump relay.
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Old Mar 22, 2008 | 02:49 PM
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Where is the fuel pump relay located? also I just purchased the car so I am not familiar with the vehicle. The tire pressure is 20psi on the front and 10psi on the back, The car has been lowered and I noticied the tire pressure is 20psi on the front and 10psi on the rear, is this correct! always thought it was suppose to be 35psi? I am really eager to learn all I can about the car and I am very grateful for everyones input. Thanks.
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Old Mar 22, 2008 | 05:14 PM
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Your tires are flat.. lol Around 28psi or so is where they should be at. Check out here for manuals..

http://foxed.ca/foxed/index.php?page=rx7manual

You will want to download the Factory Service Manual (FSM) and the wiring diagrams.

Did you check for power how I said? Anyway, the fuel pump relay is under a panel under the passenger side carpet (under where your feet would rest).
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