Secondary Air Pump

[Tricky d]

Hi guys just woundering if anyone else has noticed that there secondary air pump comes on when they are driving or stopped at a junction? and before anyone says its not the fan. Is this normal?? look forward to hearing any replies. Oh by the way its an octy vrs 1.8t

[Fezboy]

Hi guys just woundering if anyone else has noticed that there secondary air pump comes on when they are driving or stopped at a junction? and before anyone says its not the fan. Is this normal?? look forward to hearing any replies. Oh by the way its an octy vrs 1.8t

Yes it's normal

Mine does it after 10-20 mins of driving!

[Bodge]

Skoda say:

"Secondary air injection system

Operation

Air is injected downstream of the exhaust valves by the secondary air system for up to 100 seconds after a cold start (+5°C…+33°C coolant temperature). This enriches the exhaust gas with oxygen, initiates a post-combustion and thus shortens the heating-up phase of the catalytic converter. Actuation is performed by the Motronic control unit –J220- through the secondary air pump relay –J299- to the secondary air injection valve –N112- (changeover valve) and combination valve. In addition, after each subsequent engine start (up to an engine temperature of max. 96°C), the secondary air system is switched on in the idle speed range for 10 seconds and checked by the self-diagnostics. The lambda control must be active for this purpose."

So basically, until the water temp exceeds 96degrees C, the pump may still come on. So it's perfectly normal, and nothing to worry about there.

Hope that helped....

[martziniuk]

Ha, have to say i have never noticed mine come on once warmed up.

[David 8]

Ha, have to say i have never noticed mine come on once warmed up.

Me neither tbh.

[Tricky d]

cheers for the help guys

[Fezboy]

Me neither tbh.

Turn the radio down then

[briskgav]

ha ha mine comes on when i start my elenor up cold for about 20 secconds.

[Tricky d]

so does mine your point being gav?

[VRSPhil]

I've just noticed mine doing this recently, kept meaning to ask why! :P

[Blanchie]

It does get some strange looks off people when it cuts out at junctions, that loverly wind down whistle noise:D sounds like some sort of Mad Max style super charger:rofl: