S2000 Under The Hood S2000 Technical and Mechanical discussions.

Does this sound like misfiring?

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Old 08-17-2009, 04:37 AM
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Default Does this sound like misfiring?

I took my car to the shop about a month ago because I thought the clutch was going out. It felt like it was slipping but figured the dealership could diagnose it and get it fixed. So I paid for a clutch replacement and the dealer also told me that they read some error codes for Random Misfires. I told them now to worry about it and I would deal with it myself (I really just wanted some time to do some research).

So I get the car back and immediately notice that my car still seems to slip or bog at very specific RPM ranges during acceleration. I get a stuttering/bogging/slipping feel under above average acceleration between 2k-3k and then I get a similar bogging/slipping at about 4-5k Rpm as well. Does this sound like my car is misfiring? After my clutch was replaced, I told them of this issue and the mechanic at Honda told me that was due to the misfire
Old 08-17-2009, 09:40 AM
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Without the CEL code it is tough to say. It could be a bad MAP sensor, it could be the TPS (both of which have caused other owners to get a misfire).

If the MAP has never been changed, I would probably start with that and get the new version with the zip tie.
Old 08-17-2009, 12:58 PM
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You might want to try the Map Whack, check the plugs to see if any are bad, and do a compression leakdown test to see if any of the cylinders are leaking and im willing to bet it will be cylinder 3 thats low thats causing random misfires and the periodic blinking of the CEL light.
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