IAC valve relearn

1999 HONDA PASSPORT
200,300 MILES • 2.3L • V8 • 4WD • AUTOMATIC
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ANGEL0324
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  • 26 POSTS
What's the IAC vavle calibration or how do i perform a relearn program for it?
I have P0507 and i am sure that it is because I replaced this valve without any of this.
Jan 11, 2019 at 6:24 PM
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STEVE W.
  • ✓ASE Certified Mechanic
  • 15,200 POSTS
  • ASE Certified Mechanic
Welcome back.
Okay, P0507 - Idle speed higher than expected.
First remove the negative battery connection for about five minutes, this should clear the idle memory. Reconnect.
Start the engine and rev it to 1,500 rpm, then back to idle (500) then back to 1,500 and back to idle.
If you have the code return and the idle speed is high then verify that there are no vacuum leaks as they can also set this code.
Jan 11, 2019 at 7:13 PM
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ANGEL0324
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  • 26 POSTS
Okay, I'll try tomorrow morning and see what happens. thanks for your help.
Jan 11, 2019 at 7:27 PM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Please let us know.
Jan 14, 2019 at 12:52 PM
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