p38 diesel injection problem

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
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.
 
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
 
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
 
You must log in or register to reply here.

Similar threads

Joe varley
The dreaded 2.7 sport lol HELP
Replies
7
Views
564
Joe varley
Joe varley
B
P38A Mistery problem
Replies
4
Views
472
Grrrrrr
Grrrrrr
F
P38 DSE loss of power when driving
2
Replies
33
Views
1K
Mark Piercy
Mark Piercy
C
P38 diesel not starting
3 4 5
Replies
97
Views
7K
Grrrrrr
Grrrrrr
Z
P38A Random braking problem-sometimes extremely hard brake pedal
Replies
19
Views
1K
Datatek
Datatek
Back
Top