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H22a1 misfire during acceleration

 
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Old 08-19-2013, 09:45 PM
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H22a1 misfire during acceleration

Hey guys. Been a while. Like a few years while. Since I've been away I've built a boosted h23 prelude that you would all love. I also picked up an h22 prelude the other day.

Everything was going good until it started doing this. I've read tons of things of what it COULD be. I've searched. Etc. But, just wasn't sure why this would happen out of the blue.

Car was running mint. Then one day it started misfiring/being sluggish and hesitant durning partial throttle acceleration. Vtec kicks good still, and the car runs strong when you get on it. But getting to that point, not always I might add, it likes to misfire and hesitate. Then all of a sudden it'll catch and be fine. This happens between 2-4k rpm. I swapped the fuel filter today in hopes it was something that small, and it runs the same. Disconnected the egr, no difference. No check engine lights either (except for when I disconnected the egr) just not sure what this could be. Injectors? Fuel pump? (It's a bit noisy when it primes) distributor? Plugs? Just don't know why this would happen all of a sudden. Let me know if you guys have any ideas. I've read a ton of threads and nobody seems to have found a solution.
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Old 08-19-2013, 09:47 PM
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Re: H22a1 misfire during acceleration

4th gen. Forgot to add. Obd1.
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Old 08-20-2013, 11:45 PM
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Re: H22a1 misfire during acceleration

Bump? Need ideas. Valve adjustment maybe? 2-3 rpm partial throttle misfire/buck/hesitation. Minor backfires from intake as well. But then you get on it and it runs fine.
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