No Boost..

[Stoker20VT]

Had my Cupra a few weeks now.

Was fine when i first got it, then it started to miss and hesitate uder acceleration.

now its doing it worse and feels like a standard 1.8 with no boost at all.

Done a diagnostic the other week and it came up with a O2 fault which is getting fixed next week, just wondering if that could cause those symtoms?

So all in all, no powerr and reeeeeeeeeealy bad MPG.

Thanks

 

[RobVT]

yeah its shot itself into limp mode you need to fix that o2 sensor and get the faults cleared and all will be sweet

 

[ibizacupra]

can you log maf? and reset ecu to clear adaptions?
vagcom?

 

[Stoker20VT]

Was just a hand held jobby, not Vagcom. Reset them, seemed to help for 10 mins then started getting stedily worse again.

Really bad at the minute, its basically a 1.8. No boost at all and jerks on acceleration.

 

[Stoker20VT]

Looking through the recipets...these cars seem to love eating lamdbas and MAFs!!

Its on 80 odd k and has recipets for aorund 3 of each.. haha

 

[ibizacupra]

induction kit on there? maf allowed to shake about?

 

[Stoker20VT]

totally standard car