SPONSORED LINKS

After cleaning throttle body idle is erratic and.

Tiny
ANONYMOUS
  • MEMBER
  • 2003 TOYOTA CELICA
  • 311 MILES
After cleaning throttle body idle is erratic and too high. I have a 2003 Celica GTS. It has a idle speed motor controled by a sensor on the gas pedal. There are no fault codes. With key on and engine off throttle motot hums and I can manually close throttle but seams like spring tension holding it open. Maybe motor is weak or position sensor bad?
SPONSORED LINKS
Sunday, December 16th, 2012 AT 2:48 PM

2 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
That can be monitored by a scan tool. Either the throttle body or pedal sensor are very expensive parts.

Get it checked by a shop.

Never clean the throttle body as the manufacturer never recommends this operation as it can cause damage to the unit

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, December 16th, 2012 AT 2:57 PM
Tiny
FREEMBA
  • MECHANIC
  • 1,152 POSTS
Check that the vacuum lines to the idle air control (IAC) valve are connected and don't have any holes or cracks in them.

Also, if you took the IAC off during the cleaning, check the IAC gasket for leaks. Sometime they will break or for whatever reason not seal properly, causing them to allow addition air to enter causing higher than normal idle speed.
Was this
answer
helpful?
Yes
No
Sunday, December 16th, 2012 AT 3:12 PM

Please login or register to post a reply.

Related Idle Air Control Content

Idle Air Control Clean
VIDEO
Idle Air Control Clean
Instructional repair video
Idle Air Control Valve Service
GUIDE
Idle Air Control Valve Service
The idle air control valve is responsible for controlling the engine idle speed via the car's PCM (computer). These valves are configured differently depending on...
VIEW MORE

Sponsored links