Wonder if anyone has any ideas on where to start with a problem I'm having with my Clio 172 Cup, what started off like a spark related missfire appears to be fueling. Just to give you an idea on the current status of the car; the plugs, leads and coil pack have all been replaced, there is a healthy spark on all 4 cylinders and there's good compression across the board.
When I checked the new plugs to see how the car is running I can see that cylinder 1 & 4 plugs are 'doing something' due to the carbon on them however cylinder 2 & 3 are still clean, swapped plugs over between 2/3 and 1/4 and this is still the same, so its not faulty plugs either. As far as I can see there's fueling to 1 & 4 but not the other 2 cylinders, the car simply runs on 2 cylinders at all times.
My next steps are;
- Listen to the injectors to see if they 'click' whilst the car is running.
- Test the resistance of the injectors.
- Test the pulse and maybe continuity to the injectors.
But before I do all this I wondered if there's any known faults that can occur that would cause number 2 and 3 injectors not to fire? If not does anyone know the resistance figures of the injectors, how to test the pulse and what pins from the ECU link to the injectors?
Any help is greatly appreciated as this has got me baffled, surely 2 injectors wouldn't just fail, the car was running fine then the next time I went to it, it wasn't.
If it makes any odds the car mileage is 89,000 and has just done 1,300 flawless miles across Europe.
When I checked the new plugs to see how the car is running I can see that cylinder 1 & 4 plugs are 'doing something' due to the carbon on them however cylinder 2 & 3 are still clean, swapped plugs over between 2/3 and 1/4 and this is still the same, so its not faulty plugs either. As far as I can see there's fueling to 1 & 4 but not the other 2 cylinders, the car simply runs on 2 cylinders at all times.
My next steps are;
- Listen to the injectors to see if they 'click' whilst the car is running.
- Test the resistance of the injectors.
- Test the pulse and maybe continuity to the injectors.
But before I do all this I wondered if there's any known faults that can occur that would cause number 2 and 3 injectors not to fire? If not does anyone know the resistance figures of the injectors, how to test the pulse and what pins from the ECU link to the injectors?
Any help is greatly appreciated as this has got me baffled, surely 2 injectors wouldn't just fail, the car was running fine then the next time I went to it, it wasn't.
If it makes any odds the car mileage is 89,000 and has just done 1,300 flawless miles across Europe.
