My 100hp over revs slightly

When I take it out of gear (either whilst driving going into neutral or at lights) it seems to not drop revs quickly and when it goes under 1k it comes back over it for a brief second.....

Is it the clutch?

Possibly a lambda sensor?

They expensive?

Sound more like the idle control valve,
Sit it idling and put all lights and heater fans on full, it should pull rev's down but stabilise, then turn them a off and it should pick up revs and stabilise, if not could be idle control valve, or maybe the throttle body might want cleaned?

exactly that!!
when everything on the revs drop a little

But that's normal, no?
The extra electrical load causes the revs to drop and vice versa.
Maybe an air leak after the air flow meter?

revs drop down to just below 1k and shoot to just above 1k before they settle at below 1k, will only do it the once each time, not constantly shooting up.....if its in neutral

Have you cleaned the throttlevalve?

gr J

fpan said:

Maybe an air leak after the air flow meter?

Click to expand...

Yes, it sounds like a vacuum leak to me.

PS it doesn't have an MAF/AFM, it has a MAP (manifold air pressure) sensor.