MK4 Gti Rev change

[greengti89]

Hey Guys,

Not sure whether anyone can help me out, but, no better place than this.

I had a boost/vac hose replaced not long ago and then had all my error codes cleared last night...was driving perfect again, but when i drove it this morning, it's gone back to revving low on idle, give to take just above 600rpm..

can anyone suggest where to start looking? i can't seem to find a vac leak anywhere. It also goes back to normal if i turn the car off and back on again... So it's kinda intermittent.

Thanks for your help

[schwartza3]

easiest thing to try is disconnect the MAF and see if the idle goes back to normal, could be a bad MAF

[greengti89]

easiest thing to try is disconnect the MAF and see if the idle goes back to normal, could be a bad MAF

Thank you i will check that.