Attention! It is allowed to disconnect the wires from the AB terminals only when it is provided for by the work methodology. When the AB is turned off, the fault codes entered into the memory of the ECU-KSUD, the settings of the audio equipment and the anti-theft system locks are erased.
Disconnection of plug connections (ShS) only be carried out with the ignition off.
In case of malfunction of the injection and ignition system, before proceeding with the determination of malfunctions in the ECU-KSUD or other control element, check the status of the loop. On the engine «N62» installed an integrated control system - KSUD electronic type model «Bosch Motronic ME 9.2.1» (pic. 5.23) with a non-contact electronic ignition timing control system, taking into account anti-knock control of the combustion process by cylinders. Both control subsystems are united by one electronic control unit (ECU), made in the form of a specialized digital microcomputer, which provides control of all engine workflows in the optimal parameters of power, efficiency and toxicity of the car. It is also entrusted with the functions of controlling the automatic transmission, elements of the brake system and a number of other functions.
Engine speed at idle 750–850 min-1.
Carbon monoxide content (CO) in the OG is automatically maintained within the specified limits. In the event of a misfire in one of the cylinders, due to a malfunction in the primary circuit of the ignition coil, the ECU-KSUD turns off the injector of this cylinder, which prevents the converter from failing due to the ingress of a large amount of unburned working mixture into it. The engine has two oxygen concentration sensors in the exhaust gas. One is installed in front of the converter and plays the role of a regulator. The second one is installed behind the converter - to control the operation of the converter. In total, two converters are installed, for cylinders 1–4 and for cylinders 5–8.
Carbon monoxide content (SO) in the exhaust gas with an exhaust gas converter - 0.2–0.12%, without an exhaust gas converter - 0.5–1.5%.