Rough Idle 98 Honda Civic - Honda Civic Forum

6th Generation Civic In the years from 1996 to 2000 Honda released it's 6th Generation Civic. Chassis codes: EK9, EK4, EK3, EJ6, EJ8, EJ9, EM1

Rough Idle 98 Honda Civic

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Old 10-13-2018
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Wytas
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Rough Idle 98 Honda Civic

Just changed the head gasket (head was machined), timing belt, accessory belts, water pump, and valve lash adjustment. After starting the car up it runs fine for about a minute, and then it starts to go into a rough idle. Putting the car into drive its fine (haven't test drove it yet). I bled the cooling system, so I am thinking that it is a vacuum leak somewhere. I like the idea of doing a smoke test, but where can I hook up the hose to the system to check for leaks? Also have seen spraying carb cleaner around the intake manifold but that didn't seem to change the idle much. Here is a video of the car idling.
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Old 10-19-2018
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Wytas
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Re: Rough Idle 98 Honda Civic

Problem solved, cleaned the IACV and TB
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