Juddering

[Ray_Ray280]

Hello,

I had to fit a new maf to my car as my old one broke since I changed it I've got all my power back yay but when I'm just cruising down the motorway at 1800rpm the Caria juddering. Like the turbo cuts out then in again and it keeps doing it until I put some acceleration on the. It will stop until I let of the pedal.

Any ideas have a brought a dud maf? If so should I take it back and get another one?

Done a scan and only for error 17964 which I'm lead to believe could be a vnt issue.

Also I do have a small split in my intercooler and I thinks vac leak..


Thanks

Ray

[EsSeX dAn]

is it a pd version or non pd?
if is is a non pd version it sounds like you might need to turn the fuel injection quantity up a little. this is usually the case if it judders during slowing down

[Ray_Ray280]

It's a pd version and its not just when slowing down can be when drivin at low rpm