Question about 1992 Honda Accord

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Backfire through intake

I have a 1991 honda accord, well i checked spark to spark plugs and everything is sparking, but i noticed when i removed spark plug wires from cylinder 2,3, it didnt affect it at all. it seems like they are dead cylinders for some reason, i dont know why and why its backfiring through intake. i dont know if the timing belt is off by a few teeth or wat could affect it. let me know asap please.

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  • Kenneth Clements May 11, 2010

    if its backfire through air intake your timing is slightly out

  • Brocephus May 11, 2010

    A 1991 Accord is still young by many standards and backfiring through the intake seems a bit odd for these cars. What work, if any, has been performed recently? If there was no difference in the engine's performance when you removed the wires for #2 and #3, is there a chance you may have one or more wires in the wrong place? Verify your spark plug wire locations.

    If your timing belt was off by a few teeth, your car most likely wouldn't run at all, so I don't think this is necessarily your issue.

    And just a side note, do not attempt to drive your car with it backfiring through the intake as it can cause catastrophic failure of internal engine components. If you feel deep down that it truly is your timing that is out of sorts, then do not start your engine. The engine in your car is an "interference" engine meaning, your valves and your pistons occupy the same space at different times during a combustion cycle. If your timing belt were to snap, your valves would stop moving almost instantly, but your pistons would not. They would only stop after they slammed into your valves and either punched holes in your pistons, bent your valves, or shoved your valves hard enough to damage your camshafts, or a combination of all three.



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 Check compression possible tight valve lash, if ok Check for vacume leak, make sure firing order is correct, check power to injectors an make sure injectors are working. 

Posted on Nov 30, 2008


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