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1989 Honda CRX irregular idle

Tiny
PUNKJAMMER22
  • MEMBER
  • 1989 HONDA CRX
  • 4 CYL
  • FWD
  • MANUAL
  • 196,000 MILES
My Crx has an idling problem. When I start my car(being a cold engine when started) the engine seems to run just fine, but once it is warmed up it revs up and down at a steady pace. Why is this?
Sunday, February 3rd, 2008 AT 12:26 AM

4 Replies

Tiny
BRUIZER
  • MEMBER
  • 35 POSTS
Engine temp. Sensor is faulty. Detects cold engine instead of warm.
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Sunday, February 3rd, 2008 AT 5:31 AM
Tiny
PUNKJAMMER22
  • MEMBER
  • 3 POSTS
Which temp. Sensor? I'm having trouble trying to locate it. There are a few sensors.

1)--(TW)---coolant sensor
2)--(IAT)---intake air sensor
3)--(PA)----atmospheric sensor

Sorry I'm a little lost :(

-Eric
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Sunday, February 3rd, 2008 AT 8:30 PM
Tiny
PUNKJAMMER22
  • MEMBER
  • 3 POSTS
I have an '89 CRX 1.5 w/ 196000 on it.

My question never got an answer.

My Crx has an idling problem. When I start my car(being a cold engine when started) the engine seems to run just fine, but once it is warmed up it revs up and down at a steady pace. Why is this?

I repaced the engine temp sensor, but it keeps happening, why!
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Wednesday, March 5th, 2008 AT 5:49 PM
Tiny
CONSV
  • MEMBER
  • 4 POSTS
Make sure your coolant doesn't have air in it. Bleed it good.
I had the same problem on my crx and I bled out the air and it fixed the problem
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Monday, August 3rd, 2009 AT 7:58 PM

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