What are the symptoms of low idle, weak acceleration?
The symptoms are: – Idles at just above 0 RPM, all the time (on start, hot, cold, wet, dry, etc) – During acceleration, the scar sputters (as if water were in the gas or something) – If while driving at a high speed (say 60 MPH), I let the RPMs fall to 2K, the car sputters exactly as it does during acceleration
Can a bad throttle position sensor cause idle surging?
Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS. At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges. 3) Check Engine Light
What causes the Check Engine light to turn off at idle?
At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges. The check engine light will randomly turn on and off even if the car is running smoothly without any jerks and stalling.
What do you need to know about slow acceleration?
Since the initial problem of slow acceleration did not produce a check engine light I was reluctant to mess with any of the other sensors. What you need for proper engine operation is a) air, b) fuel & c) ignition.
What causes a car to lose power when accelerating?
1 Clogged Fuel Filter 2 Clogged or Dirty Air Filter 3 Clogged catalytic converter or particle filter 4 MAF Sensor malfunction 5 Oxygen Sensor malfunction 6 Faulty fuel injectors 7 Faulty fuel pump 8 Low cylinder compression 9 Faulty turbocharger/boost pipe leak
Why does my Subaru have a low power response?
After explaining problem to mech he said it was either the fuel pressure regulator or the fuel filter, I took the opportunity to replace spark plugs, air filter, oil, oil filter, and a very dirty fuel filter (which I believe was the culprit in my case), and of course a very expensive O2 sensor. Car drives like new again…response is super!