honda missfire 1993

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Kingsway Tire - 27 Jan 2006 19:58 GMT

I have a misfire in my 1.5 l Honda. we did cap rotor plugs wires. did a
cylinder leak down, test compression test, and a fuel pressure test they
were all good. and you can still hear it coming out of the tailpipe. can
anybody help?

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TeGGeR® - 27 Jan 2006 23:23 GMT

> I have a misfire in my 1.5 l Honda. we did cap rotor plugs wires. did a
> cylinder leak down, test compression test, and a fuel pressure test they
> were all good. and you can still hear it coming out of the tailpipe. can
> anybody help?

When does the misfire happen? When hot? Cold? Both? Can you feel the
misfire when you drive?

If you've replaced all the above, either one of those components is
defective, or the coil is breaking down under load.

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TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

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Chevy - 28 Jan 2006 03:08 GMT

this is at idle , you can hear the miss out tail pipe and feel it in / at
engine , works good under load ..just while idleing

>> I have a misfire in my 1.5 l Honda. we did cap rotor plugs wires. did a
>> cylinder leak down, test compression test, and a fuel pressure test they
[quoted text clipped - 6 lines]
> If you've replaced all the above, either one of those components is
> defective, or the coil is breaking down under load.

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Michael Pardee - 28 Jan 2006 12:09 GMT

> this is at idle , you can hear the miss out tail pipe and feel it in / at
> engine , works good under load ..just while idleing

Idle misfire that smooths out under load makes me think mixture rather than
spark. Most ignition weaknesses get worse when the cylinder pressures go up.

It seems like too simple a solution, but a bottle of injector cleaner could
be the answer. If it still does it after 100 miles... well, it was too
simple. In the meantime you can check the vacuum hoses that come from the
intake manifold and clean (or - better yet - replace) the PCV valve.

Mike

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