Citroen CX 2400 Gti 1979 injector problem
aklemar
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Gepost: 12 mei 2020 11:29 PM

Hi,

Please help.I have a big problem with my cx Gti 2400 made 1979.I dont have a negative puls on fuel injectors.All injectors does not work anymore.On the car is new fuel pump,spark plugs and cables.The car is runing only 3 sec. with choke fuel. Ignition coil and distrubution is OK

Tnx

Alen

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Citroensmgz
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Gepost: 13 mei 2020 12:14 AM
  [ # 1 ]

Your injection computer ( Bosch L-Jetronic) is not working correctly. Start to check if it get’s power, it has good earthing and the connectors are OK.
If the cars runs a couple of seconds when you start, this means the “start” procedure works so you ECU should have power. because there is a separate cold start injectors.  You conclude your main injectors are not switched on. Your next point is to see if ECU get’s a signal from the ignition module: The Distributor gives a signal to the ignition module, which then gives pulses to the injection computer to inject. . Look for schematics to know what wires to check.

To err is human, not to err is divine.

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Rogier 1975
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- GS/GSA X1
- XM V6 Pallas
Gepost: 13 mei 2020 10:04 AM
  [ # 2 ]

And: the fuel pump is switched by a double relay.
- One part is switched when applying the starter motor - this part apparently works fine
- Second part is switched when the motor is running, by a signal from the air measurement unit - seems this signal is not arriving, or the relay is faulty?

Rogier, Citroën GSA X1 1984, XM V6 Pallas 1994, Lexus GS300h 2014
Ex: Xantia HDI Break 2000, CX 22 TRS 1989, XM TD12 1993, P205 Forever D 1995, XM V6 Exclusive 1996, Fiat GrPunto 2006, CX 2400IE Pallas C-matic 1978, BMW 320i 2005, Porsche 968 1994, MB B180CDI 2014, Toyo Prius 2012, BMW 325Ci Cabrio 2005

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