S2000 Under The Hood S2000 Technical and Mechanical discussions.

missssfiring....no engine check or cel

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Old Jun 13, 2007 | 05:04 PM
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Default missssfiring....no engine check or cel

hi guys i have 02 4xxxx miles on its.. and i do not have any idea some day i was driving around and stoped i was feeling little misfiring... for sure its misfire....
but no engine check or cel and when im driving its ok...but when my engine is hot and stop ..i just feeling that little very lettle misfiring i just changed my spark plug and coil...did not check injector yet.. what do you think? guys.. bad injectors? bad cat? bad exhaust? hate this kinda problems man......thanx

ok today is 6/17/07 ok guys what i found today is.....when i turn on the AC on...everything is ok no misfiring u know when you turn on the AC on your car engine lot louder like i mean sound like get more electric power ... i think it electrical thing but i dont know where to start..any idea?...help..haha
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Old Jun 13, 2007 | 05:10 PM
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http://cbs4denver.com/recalls/recall...078184657.html
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Old Jun 13, 2007 | 05:18 PM
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thanx for that info but s2k is not on the list.....T_T
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Old Jun 13, 2007 | 05:56 PM
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Originally Posted by madmomma,Jun 13 2007, 08:10 PM
Somehow I don't think the fuel pump relay on Honda other models has anything to do with an S2000.



If the car is actually misfiring you will eventually get a CEL and a misfire DTC stored. No DTC, it's not misfiring.
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Old Jun 13, 2007 | 06:20 PM
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Originally Posted by Slows2k,Jun 13 2007, 05:56 PM
Somehow I don't think the fuel pump relay on Honda other models has anything to do with an S2000.



If the car is actually misfiring you will eventually get a CEL and a misfire DTC stored. No DTC, it's not misfiring.
um...ok... can somebody explain to me why my exhause make buc buc noise when im at the stop sign and feelin that misfire thing too its just a little bit so somebody who seattin on passinger side person can even feel this but driver can
...T_T can i drive hard with this/>>>>??
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Old Jun 13, 2007 | 06:59 PM
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i would check and see if there are any codes sometimes the cars can throw a code but no cel if it is a intermittent problem
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Old Jun 13, 2007 | 07:12 PM
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yeah i just checked with OBD scaner everything was ok..
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Old Jun 13, 2007 | 07:13 PM
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Did you replace the spark plugs as a result of the misfire? or is this something that happend after the swap? 9 times out 10 a vehicle is not going to get huge hp or performance gains out of "performance" plugs.
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Old Jun 13, 2007 | 07:16 PM
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no i got the new spark plug from dealership and coil. but i still have that misfire feelin...
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Old Jun 13, 2007 | 09:46 PM
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Dirty injectors.
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