Citroen Xantia

1. Before to start installation of turns and qualities of a mix of idling execute following preparatory procedures:
   -   Check up a condition of spark plugs size of interelectrode backlashes (Replacement of spark plugs see);
   -   Check up correctness of adjustment of a cable of an accelerator (the Power supply system - petrol models see);
   -   Check up a condition and reliability of connection of ventilating hoses картера the engine (Check of serviceability of functioning of systems of decrease in toxicity of the fulfilled gases see);
   -   Check up a condition of a filtering element of an air cleaner (Replacement of a filtering element of an air cleaner see);
   -   Check up a condition of components of system of release of the fulfilled gases (Systems of decrease in toxicity and release of the fulfilled gases see);
   -   If infringement of stability of turns of the engine takes place, check up компрессионное pressure in cylinders and клапанные backlashes (the Repair procedures which are not demanding extraction of the engine from the car - petrol engines see);
   -   Make sure that the control lamp of system of injection of fuel/ignition is disconnected (the Power supply system - petrol models) see.
2. Make on the car a short trip in which course the engine should be heated-up to normal working temperature.

Adjustment should be made within first two minutes after returning from a trip (do not suppress the engine). Wait switching-off of the fan of system of cooling. Some times having lifted turns of the engine to value of 2000 rpm, remove surplus of fuel of their inlet pipeline, then again dump turns to the single.

3. Skilled enough mechanic-fan, having the necessary equipment (a qualitative tachometre and it is accurate откалиброванный a gas analyzer) in a condition own forces to execute maintenance check in the fulfilled gases монооксида carbon (WITH). However, in case of revealing of surplus WITH, the car should be driven away for adjustment on a car repair shop.
4. On the models equipped with a control system by engine Magneti-Marelli adjustment of quality of a mix of idling (level of the maintenance WITH in the fulfilled gases) can be executed only by reprogramming ECU of a control system with application of the special electronic equipment connected to a diagnostic socket (the Power supply system - petrol models see).
5. On all other models the given adjustment is not provided also its performance it is not obviously possible. The deviation of under control parametres (turns of idling and concentration WITH in the fulfilled gases) from norm testifies to infringement of serviceability of functioning of a control system by the engine. In this case the car should be driven away for performance of more detailed diagnostics and necessary repair on a car repair shop (the Power supply system - petrol models see).