secondary air pump

[dhorsfall2000]

Hi, at what temp should my secondary air pump kick in, at the moment it starts almost every time I start the engine even though it has got a bit warmer weather?

It sounds like its gonna take off and is very embarrassing.

MK4 2.0 GTi

[Mr_Orange]

SAI will come on when the car starts from cold, whatever the weather.  Its fitted to warm up the cat converter and improve vehicle emissions.

Perhaps consider doing the rivet/bolt repair as it sounds like its split open to me.  That'll sort out the daft noise!

http://forums.motivemag.com/zerothread?id=3820606&page=1

[haf1zur]

or get rid of it completely

[richw911]

Or here

http://uk-mkivs.net/forums/t/141240.aspx

[G60GTI16V]

does the agu have this cant remember seeing it  the amount of times iv been under there past few months 

[richw911]

does the agu have this cant remember seeing it  the amount of times iv been under there past few months 

Nope 

[G60GTI16V]

 

[topher]

secondary air pump gives +5bhp

[richw911]

secondary air pump gives aum's more faults

 

[dubcruiser]

SAI will come on when the car starts from cold, whatever the weather.  Its fitted to warm up the cat converter and improve vehicle emissions.

Perhaps consider doing the rivet/bolt repair as it sounds like its split open to me.  That'll sort out the daft noise!

http://forums.motivemag.com/zerothread?id=3820606&page=1

If the outside temp is below 4 degrees then the pump will not run. Anything above this and it will run for a maximum of 90 seconds after a cold start.