Citroen XM Forum

Hi All,
Ive 4 xms. 2 cx , 1 GTI TURBO 2 BELONGING TO U2, 1 1981 ESTATE , 1 ID19, 1 GS ROTTEN, 1 VISA CONVERTIBLE , 1 TRACTIONA COMMMERCIALE,
bAD AFFLICTION !!!!!
One im restoring with difficulty and another donoar car.
Another 1993 white estate, Im hoping someone would take on. Comes with spare estate for parts.

I need help withthe 2,1 hatch. Its a lucas pump and ive gone down a blind alley tryingto get it on the road.
Help anyone?
I think the fuel pump has been locked out with keypad not responding.
I got ECU done to remove the keypad function.
Still nothing.
I need some constructive help to move onto the next phase of finding the issue.

Thanks
huw O'Toole

Have a look at the attached Denso Epic information and also Gabor's wiring diagrams.

Denso Epic information attached.

Wiring diagrams download/file.php?id=9711

We have a couple of threads regarding Denso/Lucas Epic systems, one here. viewtopic.php?f=5&t=10290&hilit=lucas+epic

First ensure you have fuel to the pump and it is rotating.
The Epic pump is similar to a Lucas Cav pump, but instead of using a metering valve to regulate fuel volume, it has a spill solenoid, which adjusts volume and timing.

You also need to ensure the Ecu is seeing engine rotation and injector lift sensor inputs.

Do you have a Lexia, or other code reader?

Pbink may be able to assist you. viewtopic.php?f=5&t=10983&p=130969&hili ... ic#p130969

Hello, yes if it is a problem with the pump itself, then chances are it can be repaired. But I have an idea that there might be something else going on. If the pump is running but not doing anything it could be that the wiring is shorting out. If you have a Lexia you can test 3 of the 4 solonoids. Take a look at the wiring as in this pictured. viewtopic.php?f=5&t=10983&p=130969&hili ... ic#p130969

If your wiring looks like this then you need at least a new cable