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Rx7 1982 12a wonít idle

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Old 11-05-18, 09:28 PM
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Rx7 1982 12a wonít idle

I have a 1982 rx7 that wonít idle I changed the spark plugs and wires also changed the fuel line, fuel pump, and fuel filter. I changed the distributor cap and rotor and new battery

today i put a new alternator but still wonít idle. Any suggestions on what it is Iím happy to hear them
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Old 11-06-18, 09:21 AM
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Welcome to the board.

Well, it sounds like you're on your way to fresh tune up, so that's a solid base. Are you able to drive the car, but it just won't hold a solid idle? I just want to get an idea of what exactly is going on with it. How long has this been happening? Do yo still have the cats in place?

For your idle problem:
1. First get a service manual - I like Haynes, but assuming they are still around, Chilton makes one, too. Also, make sure to download a copy of the FSM from Foxed.ca
2. Check for vacuum leaks. It may be in your best interest to just systematically go through an replace all the vacuum lines
3. Clean the carburetor
4. Let the car warm up and go through the procedure to set idle mixture and speed
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Old 11-08-18, 07:26 AM
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Iím not able to drive it. It would just turn off right after starting up. I called a rotary shop near by and asked why it was doing it and they maybe it was the exhaust and that there to much pressure there since Iím still running the original exhaust system
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Old 11-08-18, 11:46 AM
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The exhaust is, indeed, a possibility. If the cats have self-destructed, then they may be occluding flow. To check/eliminate it from your list, you can pull the exhaust downpipe off the manifold and start the car. Disclaimer: it WILL BE LOUD!!! and you will want to remove any possibly combustible material from anywhere near the car. However, if it idles fine, then you know the cats are clogged/dead. If it still won't idle, then you're looking for the problem elsewhere.

If you use your foot to hold the throttle open, will it stay running? Also, are you sure the choke is connected and working properly?
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Old 11-08-18, 06:26 PM
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I donít have a choke when I bought the car it didnít come with one but it was the exhaust it idled fine afterwards so Iím currently running only the headers thank you for your help. The exhaust had water in it
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Old 11-08-18, 10:52 PM
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Glad you got it sorted.
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