Electronic fuel injection systems have their own advantages, which are as follows:
- A) accurate dosing of the amount of fuel in each engine operating mode, which ensures lower consumption while maintaining good dynamic performance:
- b) reduction of harmful exhaust gases as a result of precise fuel dosing and exhaust gas cleaning (OG) with the help of a catalyst;
- V) ignition and injection control is carried out by a microprocessor based on sensor signals;
- G) self-diagnosis of the control unit, which allows you to quickly find the fault. The injection system is equipped «memory», where faults are recorded during vehicle operation. If during operation failures occur in the ignition or injection system, they are recorded. This, in turn, is signaled by the engine status indicator light on the instrument panel. In the event of an engine malfunction, a RENAULT specialist workshop can provide you with a list of faults for a fee in order to purposefully eliminate a particular defect, if necessary.
All parts of the ignition and fuel injection systems are designed for a long service life and practically do not require repair. As part of the maintenance, it is only necessary to change the removable filter element of the air filter, as well as the spark plugs. Basic adjustment and repair work can only be carried out using expensive RENAULT instrumentation. For this reason, repairs and adjustments should be entrusted to specialized workshops with the necessary instruments and devices.
Attention! When working on the fuel injection system, the rules of cleanliness must be carefully observed to prevent contamination from entering the fuel system.
The fuel system is under pressure. Relieve pressure before disconnecting the fuel system hoses, see relevant chapter. Place a rag over the hose separation for safety reasons.
Before checking the fuel injection system, it is necessary to ensure the normal functioning of the ignition.
The multi-pin plug of the fuel injection system control unit should only be disconnected or connected when the ignition is switched off. Make sure all plugs are firmly seated.
Do not start the engine with the power wire terminals not properly secured to the battery poles.
When charging the battery with a quick charger, disconnect the battery. Do not use a high capacity battery to help start the engine.
Do not expose the injection and ignition control unit to temperatures above +80°C.