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

85 No fuel in main line

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Old Nov 17, 2016 | 07:17 PM
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93 RX-7's Avatar
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85 No fuel in main line

Had a small wreck in my 85 a few years ago. Car has been in storage since. Brought it out this summer. Its started and ran fine. I removed the front bumper, some of the lower cowling, the driver's headlight in an effort to remove all damaged parts. Now, the car will start with the assistance of ether, but will not remain running. With the key on and in the start position (cranking), I am getting no fuel at all from the main fuel line.

Any ideas? Is there a ground or some sort of safety in the bumper area that I could have removed when taking off the damaged parts? I know the 84 and 85 are slightly different in how the fuel pump is supplied power, but I can't seem to find the problem.

Thanks,
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Old Nov 18, 2016 | 08:35 AM
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bad fuel pump or fuel cut relay.
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Old Nov 18, 2016 | 11:21 AM
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Run 12v directly to the pump and see if it works.
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Old Nov 29, 2016 | 10:31 PM
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Any suggestions on finding that fuel cut relay? I've seen small pictures, but it looks just like a lot of other little black boxes under the dash.
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Old Nov 30, 2016 | 10:51 AM
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It's just under the dash where your right knee is where the dash and center console meet. Six prong rely. There are several posts in the first gen section on this.

https://www.rx7club.com/1st-generati...ooting-780488/
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Old Nov 30, 2016 | 11:09 AM
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before spending money on relays (even though that's probably the issue) I agree with running 12v directly to the pump to see if it's a bad pump or not.

if it runs, then look into the relay imo

a new fuel filter wouldn't hurt either I mean, since you'll be down there next to it anyway.
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Old Nov 30, 2016 | 04:58 PM
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The relay connector can be jumped.
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Old Nov 30, 2016 | 08:39 PM
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Definitely replace the fuel filter...could be clogged after running after storage.
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Old Dec 2, 2016 | 10:11 AM
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Originally Posted by KansasCityREPU
The relay connector can be jumped.
this too, Im jumping the relay in my 85 right now lol
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