Q: Car not accelerating after I put iridium spark plugs and cleaned my throttle body.

asked by on

I drive a 2002 toyota corolla S andI replaced my copper spark plugs with iridium spark plugs, and then cleaned my throttle body with carp and throttle body cleaner. My car ran as normal last night; it accelerated like normal, and drove like normal. But this morning, I turn my car on and my check engine light comes on and it accelerates reaaaaaaly slowly. Just what an earth happened?

My car has 129000 miles.
My car has an automatic transmission.

When you cleaner the throttle body you most likely sprayed the cleaning fluid directly into the throttle body to clean it out instead of spraying a rag and wiping it out. The cleaner got into the throttle position sensor and overnight the fluid shorted the windings of the internal wires of the throttle position sensor. You will need to have the computer tested to see if you have TPS codes and sensor is not responding to throttle opening. Replace the TPS or throttle body as required.

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. Car not accelerating after I put iridium spark plugs and cleaned my throttle body.

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: Check Engine code p1810

Sent to CS

Q: Vehicle was sputtering and lost power. Gets spark, cranks but wont start

Hello. There are few things that I recommend you have a technician inspect. In order of probability your vehicle may have a bad mass air flow sensor, a bad crank position sensor, a bad throttle position sensor, or restricted fuel...

Q: Electrical problems with my lights.

Hi there. The console lights and the tail lights are on the same circuit for your vehicle. Check the fuse box for a blown fuse. If there is no blown fuses, then check the wiring in the cab and see...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...