Fiat Coupe Club UK

16v n/a missfire/fluffy

Posted By: acc67

16v n/a missfire/fluffy - 02/06/2018 07:47

Started my 16v up this morning drove 2 miles and switched it off, then was really reluctant to start. Once it did it was missing but off idle under load. No warning light, popped the bonnet and checked plug leads, coil connection and distrubutor connection all ok. Spark plugs changed 2 weeks ago for the same problem.Only seems to do it if left a few days. Now it's decided it's going to behave itself which is great but not when your trying to find the fault. Any suggestions woukd be good.
Posted By: G_Man

Re: 16v n/a missfire/fluffy - 05/06/2018 20:41

I had similar symptoms with my MGF when the fuel pump was on it's way out although I'm sure it wouldn't last over a 2 week period. Faulty sensor somewhere?
Posted By: barnacle

Re: 16v n/a missfire/fluffy - 06/06/2018 18:24

Check for breakdown in the plug cable insulation under the cover, or where the rubber plug holds the bundle in the end of the engine.
Posted By: acc67

Re: 16v n/a missfire/fluffy - 06/06/2018 19:33

Thanks will have a look at the weekend, it behaved itself on a 80 mile run today. Think it's just being Italian!!
Posted By: barnacle

Re: 16v n/a missfire/fluffy - 07/06/2018 17:06

Looking in the dark for sparks can be helpful.
Posted By: acc67

Re: 16v n/a missfire/fluffy - 02/09/2018 18:39

Eventually it played up again a couple of weeks a go. Hot and after turning it off for approx 15 mins it Popped banged and didn't want to start but it did just.
Thinking of hot heat soak I decided to change the pick up inside the distributor, which so far seems to have worked.
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