How it all began:
It started one day when my diesel fuel pump from my 97 P38 packed in. I put in a new one but it wouldn't work. With the help of this site I discovered that the heater plugs 80 amp fuse had blown so I ordered a few. Then I did something stupid - I put a thin wire in its place until a new one would arrive and drove for 3 days with no problems. Then all the dashboard lights came on and I started losing power. I pulled over, popped the bonnet and discovered a puff of smoke under the fuse box. I wire had been pinched by whoever fitted the fuse box and this caused the short. I quickly sheathed it in a piece of hose and drove home. When I got home I switched off and did more investigating and realised I had fried the entire engine loom from the fuse box right down to the heater plugs. It would still start but the heater plugs were not working. So, I ordered a second hand engine loom off ebay and spent a sunny morning changing out the old one. I also replaced the heater plug main relay box as one of the terminals was black. I have put the whole lot back together but when I switch the ignition on I keep blowing fuse f37 (20 amp) and it will not start. The engine will turn over but because the fuse keeps blowing, the heater plugs won't come on and the fuel pump won't either. How do I diagnose where the fault is ocurring?
Thanks
Richard
It started one day when my diesel fuel pump from my 97 P38 packed in. I put in a new one but it wouldn't work. With the help of this site I discovered that the heater plugs 80 amp fuse had blown so I ordered a few. Then I did something stupid - I put a thin wire in its place until a new one would arrive and drove for 3 days with no problems. Then all the dashboard lights came on and I started losing power. I pulled over, popped the bonnet and discovered a puff of smoke under the fuse box. I wire had been pinched by whoever fitted the fuse box and this caused the short. I quickly sheathed it in a piece of hose and drove home. When I got home I switched off and did more investigating and realised I had fried the entire engine loom from the fuse box right down to the heater plugs. It would still start but the heater plugs were not working. So, I ordered a second hand engine loom off ebay and spent a sunny morning changing out the old one. I also replaced the heater plug main relay box as one of the terminals was black. I have put the whole lot back together but when I switch the ignition on I keep blowing fuse f37 (20 amp) and it will not start. The engine will turn over but because the fuse keeps blowing, the heater plugs won't come on and the fuel pump won't either. How do I diagnose where the fault is ocurring?
Thanks
Richard
