Can TPS cause high idle?
When a TPS goes bad, then the car’s throttle body won’t function properly. When the throttle gets stuck in an open position than your vehicle will receive too much air and cause it to have a high or fluctuating idle.Click to see full answer. Keeping this in consideration, what would cause an engine to idle…
When a TPS goes bad, then the car’s throttle body won’t function properly. When the throttle gets stuck in an open position than your vehicle will receive too much air and cause it to have a high or fluctuating idle.Click to see full answer. Keeping this in consideration, what would cause an engine to idle high?If the computerized engine control system is faulty, high idling can be one symptom. A vacuum leak in any of the hoses can be the culprit—inspect them all for leaks. A bad idle-speed control unit can cause the problem; it may need to be replaced. A faulty alternator can fast idle issues; if so, replace it.Additionally, what should TPS be at idle? At idle is should be zero or a couple of degrees. Press down on the gas pedal very S-L-O-W-L-Y until the throttle is all the way open. You should see the percentage of throttle opening gradually increase to 100 percent at wide open throttle. Similarly, can a bad MAF cause high idle? Yes. It is the valve that’s buried. You can unplug it and test it directly with 12v without needing to remove the intake. Also, bad ground path to the TEMP-II sensor can cause a high idle.Can EGR valve cause high idle?Some claim a leaking EGR valve can cause a high Idle but I would expect it to be very rough because of the dilution with exhaust gases.
