Honda Idle problems

[Matt Baldwin]

I have a 1988 Honda Prelude 4WS. I have been having a problem with the idle fluxing up and down after the engine hits operating temp. I have bled the cooling system, changed AICV, new NGK Iridium plugs, New NGK wires, Cleaned the entire throttle body, checked for leaks and did not find any. It still fluxes up and down about 1000 rpm after hitting operating temp. Plus when i accelarate it feel an occasional jerk ( possible misfire ).I’m thinking distributor on the misfire but not sure. Any ideas on what to check next would be greatly appreciated!!

Topic

[Josh]

check for vacumme leaks. http://www.youtube.com/watch?v=9CPqbaSgcok&list=PL968D5AF70B82EC06&index=6

I don’t know if you have vary early efi or if your car is carbed. so I would start with vacumme leaks.

[Matt Baldwin]

It’s Fuel injected, but haven’t found a leak. I will check again.

[Josh]

if you can, provide a video of the issue…

[Matt Baldwin]

Found the problem. It was the Fast Idle Valve Assembly. Bought 1 from dealership at a great price!!
Thanks for all the advice.

[Josh]

your welcome, glad it worked out for you. 🙂

[college man]

Thanks for the update and the fix.

[EricTheCarGuy]

Glad you solved the issue. Thanks for keeping us up to date and for using the ETCG forum.

[Author]

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