I have a 1996 achiva 3.1 engine with 64k miles idle good good exeleration cold but once warm will not go over 3000rpm and lacks power good on gas millage . plug wires ,airfilter,oil filter and syntectic oi is new.they is no error message or light on.
thank you for your help
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That would be your engine "choke" functioning. It's not a problem. The choke engages when engine is cold and shoots extra fuel to the cylinders to idle the engine up especially in cold with. Once the engine has sufficiently warmed up, the engine will idle back down.
Nothing wrong with that - some cars are programmed that way. The Mazda RX7 would go to 3000RPM to help get the catalytic converters up to temperature as a way to pass cold-start emissions standards. Don't sweat it.
my 1988 mazda 626 starts okay then dies everytime it idles down to normal idle speed. i replaced the throttle control sensor and the mass air sensor. i replaced the rotor in the distributor but is still dies. if you throttle up to about 1500 rpm it keeps running. any ideas???