Lordhelemt
NAXJA Forum User
- Location
- Arlington
I'm swapping a 4.0/aw4 from a 95xj into a 85 cj. I pulled the PDC and engine/trans ecu from the xj and wired in the ignition/crank/run from the CJ to the XJ. I was planning on using the fuel pump wire from the PDC but I'm not getting power.
Not ideal, but the project has been moving around in stages as I identify the parts I need. So I get partially though a project then have to stop and wait for parts.
When I first started the wiring I connected the ignition/crank/run wires from the CJ to the XJ PDC and all seem to test okay. Then I looked for the fuel pump wire from the XJ PDC relay. I think it is a green/white wire that goes to the bulkhead connector. When I tested this wire it powered on with the ignition in the run position then turned off. Great it looked like this was the prime so I thought I found the correct wire. Project stalled for a bit but I just finished the rest of the plumbing (fuel/trans/steering) so I thought I'd see if it would start. Nothing. I pulled a fuel line then tired again and no fuel. So I tested the wire and there is no power in the run or crank position. Then I hard wired the fuel pump to a spare battery and the truck started right up.
So my first question is am I tapping into the right wire? If so, what would prevent the relay to deliver power to that wire? I did swap the relay with another from the PDC but that didn't work.
The wiring is a mess, as you can imagine, but I don't want to start thinning it all out until I know everything is running properly.
Any ideas on what could be going on?
Not ideal, but the project has been moving around in stages as I identify the parts I need. So I get partially though a project then have to stop and wait for parts.
When I first started the wiring I connected the ignition/crank/run wires from the CJ to the XJ PDC and all seem to test okay. Then I looked for the fuel pump wire from the XJ PDC relay. I think it is a green/white wire that goes to the bulkhead connector. When I tested this wire it powered on with the ignition in the run position then turned off. Great it looked like this was the prime so I thought I found the correct wire. Project stalled for a bit but I just finished the rest of the plumbing (fuel/trans/steering) so I thought I'd see if it would start. Nothing. I pulled a fuel line then tired again and no fuel. So I tested the wire and there is no power in the run or crank position. Then I hard wired the fuel pump to a spare battery and the truck started right up.
So my first question is am I tapping into the right wire? If so, what would prevent the relay to deliver power to that wire? I did swap the relay with another from the PDC but that didn't work.
The wiring is a mess, as you can imagine, but I don't want to start thinning it all out until I know everything is running properly.
Any ideas on what could be going on?