Engine idling.
No faults stored.
No leaks in the exhaust system.
Engine temperature above 80 °C.
All electrical loads switched off.
Automatic gearbox set to ”P/N”.
Throttle cable adjustment OK.
Note:
Used to check idling.
Idling, ignition advance/retard and CO value are not adjustable.
The idling speed is set by the control unit.
The position of the distributor has no effect on ignition advance/retard.
The CO value is controlled by the lambda regulation.
In the basic setting mode, the carbon canister valve is closed and the AC compressor is switched off.
Procedure:
Choose the idling check function.
Rev up the engine and let it idle for two minutes.
Check the block of digits in the operating condition column. Prescribed value X000.
Compare the actual speed signal (actual value) with the specified speed signal (target value). Required values: engine speed signal 800-880 rpm, idling regulator –1.39 till 1.39 g/s.
On completion of basic setting, the carbon canister valve is activated and the AC compressor is switched on.