Overfuelling...?

[Andy_J]

I had ma car on the rollers on sat and i'm 13bp short of std figures, the guy says it was over fuelling.

Whats the main causes of this and how are they found/fixed?

 

[edde]

How much was it overfueling? could just need a good service.
Main reason are a failed senor or lack of air to the engine.

 

[chris172]

Does it have any sort of modified airfilter??? if so that'll be your problem.

If not ...sorry don't know.

When I put my Viper on it did 20mpg....and went 150bhp on the rollers. A Superchip remap 30 minuites later and it was 180bhp...normal driving gets 33mpg . Geeza said it was overfueling at WOT and running lean at low revs.

 

[Andy_J]

PX ind kit...

He said it was running 10 to 1 or something.. dunno what it means other than it being a fuel/air mixture ratio..

anyong know if the px ind kit would have thi effect.?

ma clio runs 30-35mpg