help misfiring!!!!!
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help misfiring!!!!!
VIDEO OF SAID MISFIRING
http://www.youtube.com/watch?v=INOkZIHSa7Q
i have a 99 dx hatch with a stock d16y7 with an ex exh mani an ex intake mani it ran fine for 2 years then it started misifirng but didnt throw any codes then it started running real rich.
i can disconnect injector 4 and the idle stays the same i can disconnect plug wire 4 and nothing changes and it throws p301,p302,p303,p304 and p1300 and p1399 i just installed a new distributor ,wires, cap, rotor,ngk plugs and injectors and still nothing i turn it on and the cel starts blinking like crazy idles like a subby and sounds like a subby when i hit it
Modified by iNfAmOuS_PuTt_pUtT at 8:45 AM 5/17/2007
http://www.youtube.com/watch?v=INOkZIHSa7Q
i have a 99 dx hatch with a stock d16y7 with an ex exh mani an ex intake mani it ran fine for 2 years then it started misifirng but didnt throw any codes then it started running real rich.
i can disconnect injector 4 and the idle stays the same i can disconnect plug wire 4 and nothing changes and it throws p301,p302,p303,p304 and p1300 and p1399 i just installed a new distributor ,wires, cap, rotor,ngk plugs and injectors and still nothing i turn it on and the cel starts blinking like crazy idles like a subby and sounds like a subby when i hit it
Modified by iNfAmOuS_PuTt_pUtT at 8:45 AM 5/17/2007
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so you get misfires on all the cylinders or just #4. I see you get codes for all of them. if its only one cylinder then misfires can be caused by no spark, no fuel, not enough compression. so switch spark plug 4 with 3 and see if the problem stays in cyl 4 or follows the plug. same thing with the inj. perform a compression test.
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Re: help misfiring!!!!! (iNfAmOuS_PuTt_pUtT)
many things it could be. how mechanicaly inclined are you. check valves for cracks, not seating, cracked spark plug, shitty spark plug like autolite plugs i see many people use, rotor, cap, wires, compression,injector, injector pulse. and some other stuff im forgetting.
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replace and or switch with another cyl. the spark plug and injector.
if not sounds like a head gasket problem. but do a compression check on all four and if the #4 is low you got a problem
if not sounds like a head gasket problem. but do a compression check on all four and if the #4 is low you got a problem
#17
Re: help misfiring!!!!!
have you checked the positon of the plugwires as suggested by gotbooost? check it end to end..
have you experimented on advancing/retard the timing before this problem occurred?
what did you do to your car before this happened?
have you experimented on advancing/retard the timing before this problem occurred?
what did you do to your car before this happened?
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