172 Idle speed

[williams-ant]

My 172 ticks over at about 500 rpm which seems a little low, although the car doesnt stall..

Is this right or should it be about 800? cna it be adjusted when my car gets serviced next week?

 

[Lee]

Not sure, but I think the manual says they are supposed to idle around 750 rpm. Mine does.

 

[Rich-D]

The idle speed varies and the ECU sorts it all out automatically, so cant be adjusted.

It takes readings from all the sensors and adjusts the tickover so the engine idles as low as possible without it being lumpy or wanting to stall.

Mine also has a low idle speed...