i have been working on a friends 54 plate 1.2 punto because it suddenly lost all power and the EML came on with a P0351 coil pack fault, it also had a dreadful and erratic idle. so i replaced both coils, sparkplugs, lambda and changed oil and oil/air filters, all OE parts
revs are a little steadier but still not the best, the car starts fine and sounds more even on the cylinders, but once running it has terrible stutter, breaks up and kangaroos around town and under light throttle. open the throttle wide and get onto the open road and it seems to clear itself and run fairly good for a while, then back to an awful jerky ride. no fault codes are now present
any help greatly appreciated as i am new to the fiat experience and i keep being told the car is normal for a fiat..........WTF:bang:

crikey, 20 views and no helpful advice
you are a knowledgeable bunch

Maybe because you posted this in the wrong section...

steve1412 said:

crikey, 20 views and no helpful advice
you are a knowledgeable bunch

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Crikey 2 hours on a warn sunday evening and no replies to your post anyone would think we're all selfishly enjoying a time in the sun with a BBQs trips to the beach and walking the dogs.

How not to make friends and influence people

AndyRKett said:

Crikey 2 hours on a warn sunday evening and no replies to your post anyone would think we're all selfishly enjoying a time in the sun with a BBQs trips to the beach and walking the dogs.

How not to make friends and influence people

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warm sunday?????????
it is peeing down with rain
was not after making friends, just an helpful answer

sorry to interrupt your dog walking

steve1412 said:

was not after making friends, just an helpful answer

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Well you're in the wrong place then, perhaps a attitude rethink is in order.

Helpful answer: I strongly suggest you buy a haynes manual

welcome to the forum seeing as its only your 3rd post

20 view wont be memebrs either, it'll be things like Google bots and ask bots etc etc and odd people searching punto rough running etc who aren't members

Anyway - why no HT lead replacement? There just as likely if you replace coils and sparkies

Also clean the throttle body


Ziggy

Ziggy122 said:

20 view wont be memebrs either, it'll be things like Google bots and ask bots etc etc and odd people searching punto rough running etc who aren't members

Anyway - why no HT lead replacement? There just as likely if you replace coils and sparkies

Also clean the throttle body


Ziggy

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thanks for your reply,
i fitted new HT leads and cleaned the throttlebody at the same time as fitting the coils.
the frustrating thing is the car drove to work this morning perfect, then i just tried it again to nip to derby and it was like riding on the back of a kangaroo, lurching and jerking. could it be fuel starvation?

Crank/TDC sensor would be on my list of things to look at next.

Magic Johnson said:

Maybe because you posted this in the wrong section...

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If posts are in the wrong section it really helps if they're reported so that people can move them quickly. Mods gets email notifications when a report comes in, contrary to popular belief we don't sit here 24/7 reading every post, waiting for someone to do something wrong

Eklipze3k said:

Crank/TDC sensor would be on my list of things to look at next.

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I think that's a good call - often TDC sensor issues are not picked up by the ECU.

If it ain't that, I'd start to think that the problem is mechanical. Compression test, and etc.

FIRE engines (especially MPI ones) don't run rough unless they're neglected (fairly common).

thanks for the advice, I will try a new sensor and see if this helps