ScoobyDoo555

Here

Hesitation on an MY99...... maybe a MAF, maybe not. Thoughts?

Thanks in advance,

Dan

David MY99

all the answers are allready given.

clean Boostsollenoid
replace maf sensor
replace Lambda sensor
replace sparkplugs

i think it's youre maf sensor after the service they've overfilled the oil and you have had an oil carterdump into your inlethose which killed the Maf-sensor

You say that you've changed the airfilter, if that's an ram-air version, but from a different brand that could also be the bugger.

First thing to do is reset the ECU. Iff idle doesn't get better it's the lambda
Iff idle is after that it's most likely to be a failing Maf sensor which leans out to much

ScoobyDoo555

Will get the garage to look at it in the morning - idle is fine, just when I'm accellerating. Most noticeable at about 3K......

Will probably get them to do the above anyway

Dan