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[jamescropley]

Best to post this under a different thread.

When i first start the engine, there is a loud whirring noise from the left hand side, sounds like its coming from the wheel arch. It does this for about a minute and then stops. Any ideas?

Thanks

[Entwood]

Sounds like the Secondary Air Injection system .. it increases the temperature of the exhaust gases for a short time in order to get the catalytic converters up to temperature faster. .. and is quite normal

[Proz]

I think that is normal .... air injection i belive to heat the cats up quicker...

Edit .... too slow  

[JonArgraig]

Best to post this under a different thread.

When i first start the engine, there is a loud whirring noise from the left hand side, sounds like its coming from the wheel arch. It does this for about a minute and then stops. Any ideas?

Thanks

secondary Air pump, not a problem, you can unplug it or live with the noise

it just makes the cats warm up quicker

[jamescropley]

Awesome, thanks for your help.