Q: accelerator pedal throttle sensor

asked by on

Replaced throttle body and still doesn't go 30 miles an hour

My car has 135000 miles.
My car has an automatic transmission.

The vehicle could have a clogged catalytic converter, the fuel filter and/or injectors could be plugged and there are other possibilities in the fuel, ignition, and air induction systems. It is also possible that your vehicle has entered "limp mode" which is set by the PCM if the transmission would be damaged by higher speed operation. The first thing to do is determine if any diagnostic trouble codes have been set and stored by the PCM and their meaning. YourMechanic performs a check engine light diagnostic to retrieve these codes and then uses those codes to track down (i.e., individually test) the failing component. If no codes have set, the engine can be diagnosed on a scope to determine if the issue is confined to one or a couple cylinders or if there is a "global" problem such as you might get with a failing fuel pump or ignition coil or, as noted, a clogged catalytic converter. If you desire that the problem be diagnosed and repaired, please set up a mobile diagnostic with YourMechanic and they will promptly dispatch a certified Mechanic right to your location.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. accelerator pedal throttle sensor

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: My car is loud when driving (sounds like I have no exhaust) and it takes about a min to get up to the speed limit then goes faster

Hi There, It sounds like you may have damaged your catalytic converter when your car was stuck in the snow. It may have possibly resulted in the converter housing itself being caved in causing it to not flow properly resulting...

Q: Engine is very strong on hard acceleration, but on light acceleration it misfires, also rough idle and smells way too rich.

This may be related to a faulty throttle position sensor or potentially a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed...

Q: sluggish not much power

A clogged catalytic converter can increase exhaust system pressure robbing the engine of power. Along with this overheating, excessive fuel consumption can also occur. The exhaust system pressure should be checked and compared to specification to ensure the catalytic converter...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.