Technical Engine Idle revving up & down

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Technical Engine Idle revving up & down

austenw90

'13 Punto MultiAir 105
Joined
Mar 28, 2012
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873
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Location
Southampton
Hi

I just wondered if anyone could give any advice on the following.

On a number of ocassions now I have stopped at lights / junctions etc and the car begins to rev up and down (by around 2 to 3 hundred revs). When the revs drop the car shudders as if it is going to cut out but then revs back up again. It does it continuosly until I start driving again.

No lights or messages are coming up on the dash. The car is a 2.0 multijet has done 25k miles and isn't due a service for another 8,000 miles. Although I did have an oil and filter change at 23,500 miles to keep it running smoothly.

I've booked in the dealer (but not until 18th Dec) as it is still covered under an extended warranty that Fiat provided when I bought it in March this year. The car has just gone over 3 years old just 2 weeks ago.

Any advice would be appreciated.
 
Hi

I just wondered if anyone could give any advice on the following.

On a number of ocassions now I have stopped at lights / junctions etc and the car begins to rev up and down (by around 2 to 3 hundred revs). When the revs drop the car shudders as if it is going to cut out but then revs back up again. It does it continuosly until I start driving again.

No lights or messages are coming up on the dash. The car is a 2.0 multijet has done 25k miles and isn't due a service for another 8,000 miles. Although I did have an oil and filter change at 23,500 miles to keep it running smoothly.

I've booked in the dealer (but not until 18th Dec) as it is still covered under an extended warranty that Fiat provided when I bought it in March this year. The car has just gone over 3 years old just 2 weeks ago.

Any advice would be appreciated.

Mine has done that 2 times now in the past month, its a 165 as well.
 
Signifies a DPF regen on mine. Usually after a few miles of decent running with the engine up to temp. It either stops of it's own accord while driving or I wait for it to stop after parking up before switching off. Doesn't usually happen again for a week/150 miles so I know it's finished the process & points to it being the regen.
 
Signifies a DPF regen on mine. Usually after a few miles of decent running with the engine up to temp. It either stops of it's own accord while driving or I wait for it to stop after parking up before switching off. Doesn't usually happen again for a week/150 miles so I know it's finished the process & points to it being the regen.

Next time it happens on mine I am going to to take a note of the mileage and see if that corresponds to the regen data from the cars computer.
 
Signifies a DPF regen on mine. Usually after a few miles of decent running with the engine up to temp. It either stops of it's own accord while driving or I wait for it to stop after parking up before switching off. Doesn't usually happen again for a week/150 miles so I know it's finished the process & points to it being the regen.

What engines in yours :confused:
 
Sorry, it's a 165 also. Plenty of trouble with the whole regen issue earlier this year but seems to be sorted now thankfully. Part of the solution for me was to leave the engine running if the above symptoms were occurring when I stopped anywhere.
 
Sorry, it's a 165 also. Plenty of trouble with the whole regen issue earlier this year but seems to be sorted now thankfully. Part of the solution for me was to leave the engine running if the above symptoms were occurring when I stopped anywhere.

Ah right. Not sure if you've a similar DPF setup to my 120 with the 5th injector, although sound like your DPF system might be one of the nastier 'over fuel the engine to regen' types.
 
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