2003 Toyota Corolla IAC Valve

Tiny
RGRANATH
  • MEMBER
  • 2003 TOYOTA COROLLA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 80,000 MILES
How hard is it to replace the IAC Valve on a toyota corolla. Will the check engine light go on when it is replaced?
Thursday, October 30th, 2008 AT 3:02 PM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,549 POSTS
It bolts to throttle body. You should always disconnect the negative battery cable to change any sensor.

The PCM will relearn the correct setting (or steps) after a few miles. You should not get a check engine light, unless you forget to reconnect the harness.
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Friday, October 31st, 2008 AT 8:05 AM

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