They couldn't figure out, no one can...except Scotty Kilmer! They wouldn't even venture a guess. {black}:sulky:
no codes, no engine light, not drivable, stutters hard. changed NGK plugs, wires, coils, idle control valve, fuel filter, throttle position sensor, starter, no vacuum leaks. Idle was very high and much higher out of gear, that seems to have resolved with new TPS but is just choking along now.
Initially PCV solenoid opened a can of rat demons after throwing intermittent code, replacement.
Please Doc Scotty, what is causing this endless nightmare?
98 RAV4 165,000
measure your fuel pressure
I have fixed a rough idling car by just fully cleaning the throttle body try that.
The stuttering seems to have something to do with fuel pressure check if your pump has good pressure and check your fuel pressure regulator if your fuel rail has one.
