Erratic Idle after Service- Please advise!

[*Suggs*]

My 172 has just been in for the 72k service which included the cambelt/aux belt change and also new plugs.

It has now got an erratic (jerky!) idle at standstill and at low speeds in 1st + 2nd. I can only describe it as a bit of a misfire or something similar. Revs between 800 and 1100 when stationary.

Can anyone suggest what it may be and what I should do next? The Renault "specialist" I took it to is quite a drive away so I'd rather not have to take it back to them.

Thanks in advance for you advice!

 

[InsaneManiac]

It maybe an ecu fault i can't remember if there is a way to show the fault on the dash with these cars someone on here should know.
Matt

 

[Martin_172]

Mine does exactly this after a service, turned out to be the coil pack but it could be a faulty spark plug.

 

[*Suggs*]

Any ideas guys?