help with my vectra gsi

[matt838]

hi need some help with my vectra gsi was running perfectly then one morning on way to work and all of the sudden it start to splutter when underload been like it for couple weeeks now ive changed plugs and leads what else could it be any advise/help?????????????????????????????

[nismo48]

It might be the coil packs causing a misfire or air/fuel mixture too rich ..?
Worth getting it checked just in case something more serious occurs..

[Papa Hotel]

MAF?

[Eighteeteewhy]

Try a new air filter. My mi16 used to run like a pig with a dirty filter.

ETA, just try removing the filter and see if it runs better.

[ArsE92]

Papa Hotel said:

MAF?

Do you know him?

[peaktorque]

It's a Vauxhall - coil packs

[matt838]

its more of a splutter when underload its the 2.5 v6 engine

[djfaulkner]

Could be the idle control valve.

It kept causing my vectra to cutout when sitting in traffic

[matt838]

yeah when its left switched of for few hours then started it will cut out straght away could be so many different things was hopeing someone would of had same problem