Renault calls their system IEI (Integral Electronic Ignition). The major parts of the system are an inductive distributor, an electronic control module and an ignition coil. Inside the distributor are a rotor, dust seal, rotor arm and sensor coil. Note that some cars have two sensor coils.
The Engine Does Not Start
Before assuming that the fault lies in the ignition system (coil, distributor, module), check the electrical system (relays, wires, and connections).PRELIMINARY CHECK
Before checking the components, check to see that the ignition coil input lead is not broken.
The ground must not be next to the coil or the electronic module.
Move a magnet (A) quickly in and out above the B1 or B sensor coils (for double sensor distributors) or above the sensor coil (for single sensor distributors). An electrical spark to ground should result.
If there is no spark, the components of the ignition system must be checked in the following order.CHECKING THE SENSOR COIL (DISTRIBUTOR)
The needle should move.
If the needle does not move, change the sensor coil.
The needle should move.
If the needle moves, change the sensor coil.
CHECKING THE IGNITION COIL AND THE ELECTRONIC MODULE
If the needle moves, change the coil (3).
If the needle does not move, change the electronic module (4).CHECKING THE DISTRIBUTOR
If the distributor seems faulty, it can be checked out in the following way:
If an electrical spark is produced, the distributor must be repaired or replaced.Ignition Problems While the Engine is Running
Before assuming that the fault lies in the electronic module, check the condition of the spark plugs and the high-voltage wires.
If the vehicle runs roughly or misfires due to the ignition, after the spark plugs and the high-voltage wires have been checked out, change the electronic module.
After the sensor coils have been changed, the air gap must be adjusted for proper ignition and engine operation.
The air gap must be between 0.3 and 0.6 mm (0.012 and 0.024 in.).
- Loosen the two screws (5) and (6).
- Place a feeler gauge between the top of the sensor coil and one of the rotor cams.
- Adjust the coil base on the screw (6) side so as to bring the coil tip into contact with the feeler gauge.
- Retighten the two screws (5) and (6).
- Check the air gap for all four cams of the rotor.
If the air gap is outside the acceptable range of 0.3 to 0.6 mm (0.012 to 0.024 in.) for any cam and it is impossible to adjust this air gap properly, change the distributor.