Coolant sensor is changed but this also isn't the problem and we have measured the sensor and the resistance is changing when the sensor is getter warmer.

The TPS is also measured at the ecu and it goes from 5V to 0V when you press the pedal.

We also took off the complete inlet manifold and put some new gasket on it, this has made some difference but still not the complete problem.

How does the Idle Speed control valve operate??? Is this valve changing position or is it just open and closed and nothing between it.

We didn't drive with the car yet but the problem now is, when we start the car it idle's at 1000rpm for 2 sec. and then the engine stalls.

Cheers Ruud