FrankP
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| posted on 1/8/10 at 08:55 AM |
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Intermittent Misfire -
Hi,
I am suffering from an intermittent misfire on my zetec odd this is once I turn off the ignition and restart the engine it seems fine.
I have been through all of the electrics and replaced the coil pack, HT leads, and connectors plugs and the edis box.
The set up is;
silver top zetec
EDIS box - coil pack
Stock injectors and ford injector manifold
Megasquirt 2 ecu
Suggestions welcome on what to test next would be welcome.
Thanks
Frank
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big-vee-twin
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| posted on 1/8/10 at 09:12 AM |
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I had similar issue on my Megane R26 it was an injector fault, I replaced two of the injectors and the issue went away.
You can get them cleaned as it is the spray pattern that is effected and the mixture doesn't burn properly, you can't test for this it has
to be done in a specialist machine
see here link
[Edited on 1/8/10 by big-vee-twin]
Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016
http://www.triangleltd.com
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Mark Allanson
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| posted on 1/8/10 at 09:14 AM |
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Or you can just soak them overnight in carb cleaner - works a treat.
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
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Mark Allanson
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| posted on 1/8/10 at 09:17 AM |
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I had the same problem a little time ago - see here
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
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jambojeef
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| posted on 1/8/10 at 12:02 PM |
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Dad had this a few years back on his silver top zetec'd mondy.
Problem was a little convoluted but the cam cover gasket was leaking down the spark plug 'oles and the oil sitting round the plugs worked its
way up the leads and degraded them - maybe contributing to a split insulator on one of the plugs aswell.
So maybe a quick look at the plugs, leads and gasket?
Geoff
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zetec mike
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| posted on 1/8/10 at 04:33 PM |
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Is it a random miss when idling or under snap acceleration, or driving under steady throttle ? Is it engine cold, hot or both ? Also I know its
intermittent but when it does it is it regular, as in the same cylinder ?
[Edited on 1/8/10 by zetec mike]
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