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Author Topic: Cylinder misfiring.  (Read 3124 times)

guest3698

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Cylinder misfiring.
« on: January 03, 2017, 07:31:36 PM »
We have an engine management light flashing on our 1.2 2006 Jazz. We have replaced all 8 spark plugs, 4 front coils, 4 fuel injectors and the diagnostics are still showing that cylinder 2 is misfiring.
The car is still sluggish to respond compared to normal, and seems to be consuming more petrol.
Is there anything else we can try please?
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guest255

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Re: Cylinder misfiring.
« Reply #1 on: January 03, 2017, 07:59:37 PM »
May sound obvious but what about the rear coils?

Especially cylinder 2?

Also have you checked all the ignition wiring?

EGR valve could also be a culprit with general bad running
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culzean

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Re: Cylinder misfiring.
« Reply #2 on: January 03, 2017, 09:10:03 PM »
Rear coils are more likely to fail than front for two reasons, rear plugs are often not replaced and gap gets large which stresses the insulation of coil and rear coils are closer to exhaust manifolds and run in a hotter place.
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Some people will only consider you an expert if they agree with your point of view or advice,  when you give them advice they don't like they consider you an idiot

guest1372

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Re: Cylinder misfiring.
« Reply #3 on: January 03, 2017, 11:09:47 PM »
Swapping the ignition components for cylinder 2 to an alternate location will narrow down the culprit.
If it's still c2, then check the condition of the plug/socket connected to the coil pack on c2.
--
TG
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