A cure for 16v engines stalling during warm up.

[Mike Peddie]

Many owners of 16v i.e.'s experience an annoying problem during warm up with the engine stalling abruptly when it is needed to idle.

I have suffered from this problem for the last 6 years and tried all of the following to cure it:
- Replaced air flow meter
- Replaced coolant temperature sensor
- Replaced Air Bypass Valve
- Thoroughly checked for air leaks

In the end the solution was incredibly simple. On the back of the air bypass valve there is a small nut (6mm). This nut allows the opening of the valve to be adjusted. If the nut is loosened and then moved outwards from the centreline of the air bypass valve it opens the valve wider. This gives a higher idle speed when the engine is cold and effectively keeps the choke on for longer during warm up.

There is only a small amount of travel in the adjustment, but the difference it makes to rpm when cold can be significant.

For those that don't know, the Air Bypass Valve is mounted to the right of the cam covers on top of the thermostat housing. It will appear to be a metal disc with a rubber pipe attached either side of the disc.

[peter]

is it the the same for 16v turbo?

[Brian Hilton]

Hi

Think you will find that this only applies to series 2, ?