Avant4me

Active Member
Oct 13, 2005
359
0
Bristol
Since getting the car back to what i thought was full health with the aid of a genuine MAF, i have noticed that the MPG is still low very low 24MPG for a 160mile motorway drive at 70-80mph.

I am now convinced that this is Lambda related as the car was way rich last time it was tested. I am going to have to replace these one by one starting with the Pre cat one.

Before i do so i was wondering if there is a way to measure the lambda readings within VAG to check how they are working.

I have done a search and those who have sugested some measurement blocks in the past do not say which car they are measuring them on so the blocks might be different.

Also i have read that the coolant sensor can throw off fuel consumption, but can it really make that much difference??

Matt