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Hi all car is 2002 w203 c32 amg the secondary air pump comes on as normal when car is cold stays on for approx 20 seconds But every now and again the pump comes on when engine is hot which puts the cel on, as i understand the pump it should only come on when cold for 20 seconds any ideas to why the pump is coming on when engine is hot ?
Car has had secondary cat delete would this cause it ? Thanks.
Car has had secondary cat delete would this cause it ? Thanks.
