Hi people's I wondered if anyone had noticed that the secondary air pump runs briefly even when the engine is at normal temp as mine runs when I wouldn't expect it too as my lambdas should be hot ,it runs from a cold start along with increased rims for about a minute it is also lumpy until the pump stops and revs reduce overall its not silky smooth as a v6 should be any experience of this's would be helpfully as I considering changing both lambdas before the cat the car has 38k on it.
