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2002 Honda Civic idling

Tiny
CYMRO
  • MEMBER
  • 2002 HONDA CIVIC
  • 4 CYL
  • 2WD
  • MANUAL
  • 37,000 MILES
Once I press accelorator it goes and stays at fast idle so MOT man can't do emmissions test. Any help would be appreciated. Thanks Cymro.
Sunday, July 5th, 2009 AT 12:53 PM

7 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi Cymro,

Did you check the throttle cable adjustment?

Is the check engine light showing?
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Friday, July 10th, 2009 AT 12:27 PM
Tiny
CYMRO
  • MEMBER
  • 4 POSTS
Hi thanks for your help cable adjustment seems ok and light not on.I bought a galletto 1260 but I can/t get it to work. Do you know if its compatable with this car? Cheers cymro.
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Tuesday, July 14th, 2009 AT 10:30 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Sorry I have never used this model so is not sure if it works. When purchasing it, did you confirm with the shop?

It seems something is not closing allowing excessive air into the system causing the high idle. I would suggest cleaning the IAC and throttle body to see if it helps.
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Tuesday, July 14th, 2009 AT 1:06 PM
Tiny
CYMRO
  • MEMBER
  • 4 POSTS
Hi, have already tried all that with no luck. When I bought the galletto was told it worked with honda but reading the software it doesnt list my model.
Thanks for your help. Cymro.
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Thursday, July 16th, 2009 AT 5:00 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Most major parts houses provides the scanning services either free or for a nimonal fee. You can get it done to check for trouble codes first.

Sometimes resetting the ECM solves such problems. Disconnect the battery terminals for at least 20 seconds to reset.
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Thursday, July 16th, 2009 AT 10:27 AM
Tiny
CYMRO
  • MEMBER
  • 4 POSTS
Hi. Have tried resetting ecm. Car is on sorn so is it possible to take the ecm to be scanned? Thank you. Cymro.
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Thursday, July 16th, 2009 AT 2:04 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
When ECM is removed, it loses all its memory so any trouble codes would be erased.

You need to drive the vehicle until troubles codes are recorded before scanning is useful.

I would suspct the IAC to be sticking causing the problem. Recheck the IAC and clean it one more time. Did you remove it from vehicle to clean previously?
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Thursday, July 16th, 2009 AT 2:29 PM

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