CAR: '91 tegls
SYMPTOMS: idles erraticly after warming up. when i first start the car it will idle at almost 3k rpm, then after its warmed up it flucuates back and forth from about 750 rpm to 1500 rpm. i first noticed the problem a couple of days when i started the car and it was idling at 2k rpm but after the motor warmed up, the idle was normal and ok.
i’ve checked every vacuum hose for leaks, plugs, fuel system, the ECU is not even throwing any trouble codes. has anyone had any problems like this?