stuttery agu (fixed)

[Chris.]

AGU wont see a pressure drop, it will just run like crap.

A leaky/boost leak will cause bad running all the time when driving.

If its after 20mins of driving, i guess its fine when warming up and acting funny when fully warmed up??? whats your temp gauge doing?

[Screech16v]

AGU wont see a pressure drop, it will just run like crap.

A leaky/boost leak will cause bad running all the time when driving.

If its after 20mins of driving, i guess its fine when warming up and acting funny when fully warmed up??? whats your temp gauge doing?

Hi chris, yes mate its fine when warming up ,my temp gauge was all over the shop and I thought this must be the issue so I replaced the stat and the temp sender,now it seems to warm up at the correct rate and stay solid at 90 but still have this jerkiness on light throttle giving my engine mounts a little workout.

[Chris.]

any better with maf disconnected when stuttering?

[Screech16v]

Ive not tried unplugging the maf yet, i changed the fuel filter and tried another fuel pump relay today,it does seem better but not 100% convinced yet,maf is new but none gen

[Wazzzer]

maf is new but none gen

uh oh

[rockmonkey69]

patent parts - in particular when it comes to the MAF, is often a case of hit and miss. Although it is quite deer for genuine MAF it does prove a worthwhile investment.

[Screech16v]

So can my cheap maf be tested to see if its doing the job correctly?

[Chris.]

Dont think so.

[Screech16v]

Its the MAF everybody its the MAF  Why on earth did I think I could get away with a cheapo version  Unplugged it stutter gone, plugged it back in and it was back like night and day,so running without until I get it sorted,i noticed with MAF unplugged there is very little boost,is this a kind of self protection kicking in?

Thanks for all your help guys ,now I need to get back to the mk3 section before I start fancying a 4 

[Dalo Harkin]

So can my cheap maf be tested to see if its doing the job correctly?

With Vagcom or on a dyno - yes