Idles extremely high at times?

Tiny
AKMANDAL
  • MEMBER
  • 2002 FIAT PALIO
  • 4 CYL
  • 2WD
  • MANUAL
  • 54,000 MILES
Idles extremely high sometimes. Compression ok. New crank sensor. Throttle body cleaned. No check engine light, however, sometimes TPS reports no voltage on OBD scan.
Tuesday, November 23rd, 2010 AT 11:15 AM

1 Reply

Tiny
BORIS K
  • MECHANIC
  • 795 POSTS
Hello,

Unfortunately you do not specify if your vehicle has the 1.2 or 1.6 engine fitted.
The Idle Air Control valve(IAC) is fitted as part of the throttle body on the 1.6 engine. On the 1.2 engine the IAC is separate and can be replaced or serviced on its own.

Please see picture attached of the IAC.

How to replace the IAC, clean and check

https://youtu.be/f7mBFM0s2Ew

Please let us know how you get along.

Cheers, Boris
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Tuesday, September 7th, 2021 AT 4:17 AM

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