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I own an 83 zx turbo. It idles rough when cold. Cannot accelerate when cold. Have to wait about 10 minutes warming up before driving. Have replaced injectors, cylinder head sensor, O2 sensor, airflow meter, and have repaired AAC valve. Have also replaced spark plugs, cap and rotor and wires. Air regulator appears to be working. Intermittently, it will backfire under load. Suggestions please!!!
 

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That drives me nuckinfuts too. since I changed my clutch it only takes about 5 minutes unstead of 10. Don't know if that helped you any but maybe this will serve as a suggestion.....
 

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Thanks a lot jetblack82. But my z is automatic. Another thing, if I try to drive it when it is cold, the best that it would do is about 20 MPH. If I put more gas, it will only backfire. But once it gets hot, it drives fine. More tips please!!
 
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