# Honda Accord 97 Idle surge 2.2 engine of sedan 247000 miles

**URL:** <https://community.cartalk.com/t/honda-accord-97-idle-surge-2-2-engine-of-sedan-247000-miles/135483>\
**Category:** Maintenance/Repairs\
**Created:** [February 27, 2019, 6:51pm UTC](https://community.cartalk.com/t/honda-accord-97-idle-surge-2-2-engine-of-sedan-247000-miles/135483 "2019-02-27T18:51:24Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Cristram19\_148770](https://avatars.discourse-cdn.com/v4/letter/c/57b2e6/32.png) [@Cristram19\_148770](https://community.cartalk.com/u/Cristram19_148770)\
**Post date:** [February 27, 2019, 6:51pm UTC](https://community.cartalk.com/t/honda-accord-97-idle-surge-2-2-engine-of-sedan-247000-miles/135483/1 "2019-02-27T18:51:24Z")

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What can be the problems for a 97 Honda accord idle fluctuate

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [February 27, 2019, 7:08pm UTC](https://community.cartalk.com/t/honda-accord-97-idle-surge-2-2-engine-of-sedan-247000-miles/135483/2 "2019-02-27T19:08:43Z")

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Vacuum leak, bad IAC, worn rings, worn valve guides, valve clearance is off, the ECU is too old to operate properly… I could go on and on buy why don’;t you help by telling us the very most basic piece of information - what engine? Also is the check engine light on? How many miles on the engine?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [February 27, 2019, 7:34pm UTC](https://community.cartalk.com/t/honda-accord-97-idle-surge-2-2-engine-of-sedan-247000-miles/135483/3 "2019-02-27T19:34:42Z")

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If there’s air trapped in the cooling system, and it passes by the coolant temp sensor for the computer, this can confuse the computer where it causes the idle to fluctuate.

Tester

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**Author:** ![Cristram19\_148770](https://avatars.discourse-cdn.com/v4/letter/c/57b2e6/32.png) [@Cristram19\_148770](https://community.cartalk.com/u/Cristram19_148770)\
**Post date:** [February 27, 2019, 9:45pm UTC](https://community.cartalk.com/t/honda-accord-97-idle-surge-2-2-engine-of-sedan-247000-miles/135483/4 "2019-02-27T21:45:25Z")

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247000 miles 2.2 engine of sedan 1997 Honda accord p0505 code iacv but I replaced the new iacv still has problems

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [February 27, 2019, 9:51pm UTC](https://community.cartalk.com/t/honda-accord-97-idle-surge-2-2-engine-of-sedan-247000-miles/135483/5 "2019-02-27T21:51:28Z")

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If you are still getting the P0505, suspect the wiring and connector, especially on a 22 year old car. Also suspect dirty IAC passages or a worn out throttle body.

As for the surging, everything I mentioned in my first reply still applies as well as @Tester 's post.