Car running rough

[Jake]

Hi there, ive got a problem with my 1.4T that I cant get my head around!

Starts fine, but when i pull off and start driving it:
- sounds like its running on 3 cylinders
- idles rough when i pull up
- hardly any power when accelerating


Ive replaced the coil pack and the spark plugs but still no joy. Cant find any obvious vaccum leak either! Its driving me nuts anybody have an idea?

[andyp]

Hi there, ive got a problem with my 1.4T that I cant get my head around!

Starts fine, but when i pull off and start driving it:
- sounds like its running on 3 cylinders
- idles rough when i pull up
- hardly any power when accelerating


Ive replaced the coil pack and the spark plugs but still no joy. Cant find any obvious vaccum leak either! Its driving me nuts anybody have an idea?

Hi could be the maf try unplugging see if it makes a differance

[Jake]

Have tried unplugging MAF just now, doesn’t change anything except bringing the radiator fan on full speed

[andyp]

Have tried unplugging MAF just now, doesn’t change anything except bringing the radiator fan on full speed

try a compression test? is the fuel flow good?

[Jake]

Not sure how I would do one of those tbh, it does sound like its being starved of fuel so I thought maybe injectors need replacing? its a 2013 model which you wouldn't expect to have faulty injectors this early on...

[andyp]

Not sure how I would do one of those tbh, it does sound like its being starved of fuel so I thought maybe injectors need replacing? its a 2013 model which you wouldn't expect to have faulty injectors this early on...

remove plugs and check colour if one is black sooty fuel problem i.e running to rich if all are maybe overfueling to all cylinders if you can when plugs are out cover plug holes with thumb if possible or screw driver handle and try to feel what compression is like on all cylinders this will involve someone turning engine with key keep out of the way of all moving parts and plug electrical feeds