p38 diesel injection problem

Take the lid off and give it a sniff to see if it smells burnt , diesels also have 3 different part numbers for the fuse box and they are different and dont interchange, I do have a brand new one depending on what one yours is

Soggybite3 said:

Care to explain in more detail

Click to expand...

In the fuse box there is an "OR" gate comprising 3 diodes, one diode provides power to the relay coil from the D+ on the alternator when the engine is running, one provides power to the relay when the glow plugs are on and the third provides power to the relay from the starter circuit when cranking. If the engine is not running, the glow plugs are not on and the starter motor is not in operation, there is no power to the relay coil.

Sorry confusion once again, it is the electric in tank fuel pump relay i was talking about

Soggybite3 said:

Sorry confusion once again, it is the electric in tank fuel pump relay i was talking about

Click to expand...

That is what I'm talking about.

I removed my inertia switch and tested the plug for power with the key on. there are 3 pins. 1 is Common, 2 is No, naturally open, 3 is NC, naturally closed. On Common i get 0, on NO i get 12v and on NC i get 0.04. any ideas if this is working because if not i suspect it could be an ecu issue or am i wrong

If i bridge NO and NC could it work, i believe it has to be on NC to work properly as No is triggered in the event of a crash

is the in tank pump working?

It works with direct feed

Soggybite3 said:

I removed my inertia switch and tested the plug for power with the key on. there are 3 pins. 1 is Common, 2 is No, naturally open, 3 is NC, naturally closed. On Common i get 0, on NO i get 12v and on NC i get 0.04. any ideas if this is working because if not i suspect it could be an ecu issue or am i wrong

Click to expand...

The inertia switch sounds correct because the NO will be closed unless the switch is tripped.
You are not listening. To get power to the fuel pump relay, the starter needs to be in operation and/or the glow plugs in operation. When the engine is running power to the relay is from the alternator D+

I am listening but the way i know it is that it first comes on with the ignition to prime the FIP and once started it kicks in again or that is at least how my other one worked, I will try it your way and see. Also i have a warning on the dash says tranfer box neutral, any ideas

Soggybite3 said:

I am listening but the way i know it is that it first comes on with the ignition to prime the FIP and once started it kicks in again or that is at least how my other one worked, I will try it your way and see. Also i have a warning on the dash says tranfer box neutral, any ideas

Click to expand...

Have you put any fuses in empty spaces down under the drivers seat? There is one that you put in for towing which will give you that message

Bern768 said:

Have you put any fuses in empty spaces down under the drivers seat? There is one that you put in for towing which will give you that message

Click to expand...

Fuse 11

Datatek said:

Fuse 11

Click to expand...

Will check it and thanks