Engine Problems With A Citroen Zx 1.9i Volcane (1991)

[Nev]

Hi everyone,

I have a Citroen ZX Volcane 1.9i petrol. J reg. With electronic ignition and no cat.

The engine cut out whilst driving the car, and refuses to restart. The car has been in the garage, looked at by the RAC several times, and I have had a mobile mechanic look at it. No one can find the fault. The mobile mechanic put an indicator box on one of the plug leads, and earth, the car started and ran until the engine was turned off, there were sparks jumping across the coil leads to ground, replaced the coil and amplifier, engine will not start, had the ECU checked by a garage, 14 faults registered, sent ECU away to be checked, OK no problem with the ECU. There is no spark at the plugs or fuel into the injectors when the engine is turned over with the ignition on. The rev counter seems to register 2000 revs, when the engine is turned over. It is a good car, and I am getting desperate to find the fault, anybody got any ideas PLEASE.

[kfk]

Going to assume you have checked the battery condition and earths to body/chassis. Also assume any immobiliser is working correctly.

 

If your also assuming the above then i suggest you check it all first.

 

From memory, voltage supplies to injectors and coil come from the brown double relay, signal wires for ignition coil & injectors are controlled by the injection ecu, for the injection ecu to provide these pulses it needs to be recieving power and have good earths......when cranking the engine over the flywheel will rotate and cause the engine speed sensor to provide the signal to control point of ignition and injection.

 

So things to check:

Do you have voltage to the injectors/coil when cranking.....if not find out why these dont go throught the ecu.

is there a good earth to the ECU

For power supply issues i suggest you check the brown double relay close to the ecu.

is the engine speed sensor connected or the wiring broken.

[Guest Sinnasamy]

Hi everyone,

I have a Citroen ZX Volcane 1.9i petrol. J reg. With electronic ignition and no cat.

The engine cut out whilst driving the car, and refuses to restart. The car has been in the garage, looked at by the RAC several times, and I have had a mobile mechanic look at it. No one can find the fault. The mobile mechanic put an indicator box on one of the plug leads, and earth, the car started and ran until the engine was turned off, there were sparks jumping across the coil leads to ground, replaced the coil and amplifier, engine will not start, had the ECU checked by a garage, 14 faults registered, sent ECU away to be checked, OK no problem with the ECU. There is no spark at the plugs or fuel into the injectors when the engine is turned over with the ignition on. The rev counter seems to register 2000 revs, when the engine is turned over. It is a good car, and I am getting desperate to find the fault, anybody got any ideas PLEASE.

 

 

check at meter panel check engine light up if yes check crank sensor at flywheel.

[techbod]

I believe this engine has a map sensor it has a vacuum pipe going to it and an electrical plug and if that's shot it wont start, to be found on the bulk head approx middle, crank sensor is a good one if no signal because its loose/damaged the result will be the same and a no start, not sure if it has an inertia fuel shut off switch normally located on the driver side suspension ( a little black button ) press it in, does it have the key pad immobiliser and does it work?

hope this helps