Skip the auto shop - Our mechanics make house calls

Q: Car just idles

asked by on

The car starts but does not accelerate. It just idles.

Hi. I believe the issue your having is a result from a faulty throttle position sensor(TPS). The TPS is electronic and should move the throttle plate in sequence with the gas pedal. If the TPS is malfunctioning, the sequence will be off and a lack of acceleration could occur. I suggest that a technician tests the TPS with a scan tool or multimeter to determine if it is faulty.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Cylinder misfire

Hi, thanks for writing in. The strong smell of fuel is usually attributed to a failing mass airflow sensor or O2 sensor. These two sensors control air/fuel adjustments and can cause a misfire if they have triggered a lean fuel...

Q: How do you adjust the ventilation in the rear of the car?

If your Accord is equipped with rear vents, controlling the direction and flow of air is simple. Here’s all you need to do: Make sure that either the upper or upper and lower vent mode is selected (the rear...

Q: O/D light blinking not shifting I to proper gears with new 2 4 band and servo piston

You had the transmission rebuilt at a shop and they told you the band and piston needed to be replaced? If the transmission is back together with new parts, the problem may be electronic. There are electronic solenoids inside the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...