richieb1975

hi guys i have a my 2000 uk turbo and its started juddering at 4000 rpm when i boot it,ive cleaned the boost solenoid and pipes and checked for leaks but found none,also changed the fuel filter and still does it...
help please guys

richieb1975

also done a ecu check and no faults!!
help please

drb5

iTrader: (4)

MAF sensor most likely.

P1Drifter

iTrader: (7)

plugs, leads ?

richieb1975

ive tried the maff sensor check where u unplug it while its running and it doesnt cut out,could it still be faulty??
i would of said plugs and leads but its too violent to be a miss fire and it only happens on full boost in gears 3-5

P1Drifter

iTrader: (7)

possibly overboost and fuel cut then, do you have a boost gauge ?

richieb1975

yes i do and the boost is fine apart from when it judders but it does not over boost

drb5

iTrader: (4)

Sorry, the car doesn't cut out when you disconnect the MAF? It's ment to cut out.

This doesn't always diagnose the MAF is faulty either way, so i would replace it anyway.

richieb1975

sorry i meant to put it does cut out,ive had the maf out and the metal bits inside are very dull when they used to be shiney

L.J.F

iTrader: (31)

Change the maf then failing that try the following- plugs, leads, and clean boost solenoid.

richieb1975

maf done today and still the same so changing plugs tomorrow,just hope that works

richieb1975

spark plugs done and all good again...result

joz8968

iTrader: (13)

Member 99greenwagon will be thrilled at this result.