axle
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| posted on 19/5/25 at 04:13 PM |
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slight miss fire on deceleration
Hi all clever Clog
I have used Ford 2L DOHC 8V with the original fuel injection on my Locost . It runs fine and sounds however I do get slight miss fire after high
speed on deceleration there is only very little adjustment on the mixture and the pressure valve is temper proof. Any ideas what can be done please
help!!
Regards Axle
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gremlin1234
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| posted on 19/5/25 at 05:32 PM |
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my guess is, the biggest change from standard will be the exhaust system
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axle
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| posted on 19/5/25 at 05:41 PM |
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yes I could agree with you but how this effect it, please explain?
Regards Axle
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jacko
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| posted on 19/5/25 at 06:09 PM |
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Different back pressure to a Ford exhaust
But it could be there is I leak on one of the exhaust joints , or a crack in the manifold
555
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adithorp
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| posted on 19/5/25 at 07:30 PM |
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In 40+ years of repairing cars I don't think I've ever experience a deceleration misfire.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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jacko
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| posted on 19/5/25 at 07:34 PM |
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Sorry I miss read your post you said miss fire I was thinking back fire
555
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gremlin1234
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| posted on 21/5/25 at 07:57 PM |
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quote:
Originally posted by axle
Does it make any sense if I was to say as the car slowing down the misfire happen when I brake!?
only time I can think of, where braking might cause a misfire is:
cars with a vacuum servo for braking
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axle
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| posted on 23/5/25 at 12:53 PM |
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quote:
Originally posted by gremlin1234
quote:
Originally posted by axle
Does it make any sense if I was to say as the car slowing down the misfire happen when I brake!?
only time I can think of, where braking might cause a misfire is:
cars with a vacuum servo for braking
Thanks for your reply , no servo on the car . It does happen on hard throttle once the throttle is relived the misfire happens!!!
Regards Axle
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jacko
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| posted on 23/5/25 at 04:15 PM |
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Could it be spark plugs or coils ?
Or plug leads ?
555
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axle
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| posted on 24/5/25 at 05:23 PM |
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Hi all
Spark plugs , ignition lead & coil + rotor all renewed previously. All sorted a lot of trial & error frustrating road test sensitive
adjustment on the CO did the trick.
Regards Axle
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