3200 Aux Air pump

Lozzer

Member
Messages
2,280
Hi all, what is the purpose of this? Sometimes it runs sometimes it doesn't and is it possible to remove those 2 silver pots and blank the head off like the earlier models? Would that be detrimental?
Ta
Loz
 

TimR

Member
Messages
2,654
It’s there to heat the cats up quicker by burning fuel in the exhaust.
The theory being, pump O2 rich air into the manifolds and unburnt fuel goes bang, raising the temps...Hey presto, you just passed emissions control at start up, I believe...?
Or perhaps its just about keeping them clean. a la DPF...?
 
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Lozzer

Member
Messages
2,280
So I was right in thinking it is of no use whatsoever? Unless you're a Eurocrat?
 

Oneball

Member
Messages
11,071
The fuel map is designed to be extra rich while it’s on. Can’t say whether it’s really bad to remove it but maybe it’ll be too rich for that cats without the extra air.