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Cold idle problems

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Old 10-20-03, 11:27 PM
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Cold idle problems

I just got me my first RX7(it's an 86).HUA!! Anyway, I am having idle problems at startup. When I start the car, it starts right up, goes to about 1500 RPM and sputters and then dies. It continues this way for a few minutes. Once it warms up, it runs fine. It still sputters a little, but I figured it was normal. Can someone show me the direction to go. This is the first rotary I have ever had and I am confused as all hell. Any help would be greatly appreciated. THANKS in advance.
Old 10-20-03, 11:56 PM
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hey thats the same problem i have. im confused too. im gonna go check to make sure there are no vacuum leaks again. but if everything checks ok then i dunno...
Old 10-21-03, 11:35 AM
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Vacuum

I don't understand how that coud be a problem. If it was, wouldn't the car act up even after it warms up?
Old 10-21-03, 03:16 PM
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Re: Cold idle problems

[i]
When I start the car, it starts right up, goes to about 1500 RPM and sputters and then dies. few . [/B]

I'd start by cleaning the BAC. Also go to my thread
with the subject, " I fixed my Idle problem", and read
it.

Brad89RX7
Old 10-22-03, 11:32 AM
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Done it, now what?

Thanks for the info! I cleaned the BAC, throttle body, tested TPS, it has one dead spot I think(multimeter went to OL), cleaned the electrical contacts off of it, they were dirty and giving me an intermitent connection. I also adjusted air/fuel mixture and readjusted the TPS. I also reset the ECU and then took it for a ride to give it all the readings it needs. This morning I started it up and it jumped to around 3000 for 5 to 10 seconds and then it dropped off and died. It still does not idle until it warms up, it just dies.

Also, I have a question about the small screw in the front of the throttle budy that opens the primary valve a little more, thereby increasing idle speed by moving the throttles resting area up and down. My question is, how do you adjust this correctly in correlation with the air/fuel mix? Thanks again for the help.
Old 10-22-03, 11:52 AM
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I've never played with the screw you are refering to. Did
you test your BAC after you cleaned it. It sounds like you
have a vacume problem until your car gets warm. You have
two coolant lines running to the BAC. Maybe until those lines get warm yor BAC isn't operating right.
Old 10-22-03, 11:54 AM
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Maybe the thermowax on your car is gone or not working correctly. Anybody wanna back me up?
Old 10-23-03, 07:11 AM
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Smile Thermowax

How exactly do I adjust the thermowax. I have been reading around and this does sound like it it my problem, but I can not seem to understand what the hell the Haynes manual is telling me. Thanks!
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