119.971, 119.974, 119.975

Applicable to Engines:
119.971 starting 01/91
119.974 starting 01/92
119.975 starting 10/92






Closed Throttle Position (CTP)





Engine Check, Adjust
1) Refer to DI testing.
2) In case of complaint, on-off ratio must be measured at idle speed and at 2500 rpm with purge line to engine disconnected and plugged.
4) Base setting idle, 0.0 kg/h (Bosch) (VDO), air/fuel mixture tendency rich, < 0.0 kg/h mixture tendency lean > 0.0 kg/h.
5) Base setting part load = 1.0, mixture tendency rich < 1.0, mixture tendency lean > 1.0.
6) Defective cylinder is highlighted. Further tests to be carried out using engine analyzer.
13) In case of complaint, check ignition timing at 2500 rpm ± 200 rpm. Nominal value 38-45° with vacuum or check ignition timing under load.
14) Display -F- is ok for USA vehicles.





Engine Checks, Adjust (DI)





Cold Start, Warm-up





Engine Performance





Reference Resistor