Skip the auto shop - Our mechanics make house calls

Q: Failed emissions after P0505 code... Considering options

asked by on

Hi, my 4Runner failed emissions with a P0505 code. After taking it to the mechanic, he just called to say that from what they could figure out, there's a problem with the throttle body. He recommended cleaning out the throttle body, and if that doesn't work, replacing the throttle body ($1300). Is there a cheaper option than replacing the entire throttle body? Please help, as the car runs okay... Only problem is simply passing an emissions test.

My car has 249000 miles.
My car has an automatic transmission.

The mechanic that checked your vehicle is giving you a possible fix by cleaning the throttle body of built up carbon. This may help with the idle and P0505 code, and for passing the emissions test. The throttle body is controlled by an electrical motor as part of the throttle body. If cleaning does not clear the problem, then the throttle body may need to be replaced. I recommend having a certified technician give your car a second opinion after diagnosing your Check Engine Light code.

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
  1. Home
  2. Questions
  3. Failed emissions after P0505 code... Considering options

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: Engine light showing on a 2011 Toyota Corolla

It could be. I would put a gas cap scan on it first, that's often the easiest fix. If the gas cap is worn and it leaks, it's going to trip that code. If it's not that, the problem is...

Q: What does the Brake light on the dash mean in a 2012 Toyota RAV4?

Your car is equipped with a number of important warning lights. The Brake light is there to warn you of a potential problem with the brake system. There are a couple of reasons that this light may come on: ...

Q: Changed brake master cylinder, bled 10 times, and the pedal is soft The rear brakes are not locked but close. Truck now running rough.

You will have to bleed the brakes from the farthest location all the way to the master cylinder. There is still air in the lines causing the issue. Check the vibrations on the vehicle to see if the engine mounts...

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...
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...
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...