- difficult engine starting;
- unstable engine operation;
- engine stop at idle;
- increased crankshaft speed at idle;
- engine does not develop full power, insufficient engine response;
- jerks and dips in engine operation when the car is moving;
- increased fuel consumption;
- increased content of CO and CH in exhaust gases;
- glow ignition due to leaky injectors.
You will need: TORX T30 key, flat-blade screwdriver.
1. Reduce the pressure in the fuel system (see "Lower pressure in the fuel system").
2. Remove the air filter (see "Removing and installing the air filter").
(You can find the original at this link RenaultBook)
3. Squeeze the retainer and disconnect the wiring harness connector from the injector.
4. Similarly, disconnect the pads from the remaining injectors and move the wiring harness to the side.
5. Using a car tester in the ohmmeter mode, measure the resistance of the injector winding. At 20°C, it should be 12 ohms. If the resistance of the injector winding does not correspond to the norm, replace the injector, as it is not repairable.
Note: Check the injector for the shape of the sprayed fuel torch and for leaks at specialized service stations, since such a check directly on the vehicle is very fire hazardous.
To replace the injectors, follow these steps:.
6. Remove the two fuel rail mounting bolts.
7. Remove the ramp by removing the injectors from the holes in the intake pipe and without disconnecting the pipeline from the ramp.
Attention! If any of the injectors remains in the intake pipe when removing the ramp, be sure to replace the retainer of this injector.
8. Use a screwdriver to pry up the retainer...
9. ...and take it off.
10. Remove the injector from the fuel rail.
Attention! Each time you remove the injectors, replace their rubber sealing rings with new ones.
11. To replace the injector sealing rings, remove them from the spray nozzle...
12. ...and from the injector body. After installing new rings, lubricate them with engine oil.
13. Install the parts in the reverse order of removal.