Thread: Fuel efficiency with a 2.7L D4 - is this the norm?

One thing that prompted the ECU re-map/EGR adjust was fuel economy going up and slight power loss on really hot days.

On our old D2 this ws usually due to either the turbo modulator or MAF was faulty, so our next job is to clean the MAF or replace it.

Originally Posted by Redback

One thing that prompted the ECU re-map/EGR adjust was fuel economy going up and slight power loss on really hot days.

On our old D2 this ws usually due to either the turbo modulator or MAF was faulty, so our next job is to clean the MAF or replace it.

Can the gap diagnostic tool be used to tell if the MAF is dirty?

Did you adjust the distance travelled using the larger diameter tyres? When the speedo was optimistic the odometer was correct but now reads around 4% under.

Originally Posted by IvanR

I was able to get under 10/Lt regular before fitting the bullbar. Now only with careful driving. But I was able to obtain an improvement in fuel economy by changing where I got my fuel Noticed sometimes that it can take more than 20 Lts to fill a 20 Lt jerry.

Ivn

I've said it before, but the increase in wind turbulence caused by removing the protruding spoilers that sit in front of the front wheels on the standard front bumper makes a big difference to fuel economy, as you've experienced.