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5.3 Swap wiring question

jonathanlo

NAXJA Forum User
Location
Ontario, OR
Hey everyone! I have a 94 XJ auto that I'm in the process of preparing for a Gen III 5.3l swap. Right now I'm working on cleaning up the Jeep wiring harness.

I'm attempting to keep the Power Distribution Center (PDC) with all the relays and fuses.

My main question right now is for the Auto-Shutdown (ASD) relay. Is this something that needs to be kept for the new motor? The relay has jumpers that go to other relays or fuses (ignition I think and fuel pump). It looks like the wire from the relay to XJ PCM goes to a 5V Signal.

Most of the LSX swaps I've found don't go into much detail on what actually needs to be kept or removed, especially on pre-97 XJs.

Any help would be appreciated!
 
Hey everyone! I have a 94 XJ auto that I'm in the process of preparing for a Gen III 5.3l swap. Right now I'm working on cleaning up the Jeep wiring harness.

I'm attempting to keep the Power Distribution Center (PDC) with all the relays and fuses.

My main question right now is for the Auto-Shutdown (ASD) relay. Is this something that needs to be kept for the new motor? The relay has jumpers that go to other relays or fuses (ignition I think and fuel pump). It looks like the wire from the relay to XJ PCM goes to a 5V Signal.

Most of the LSX swaps I've found don't go into much detail on what actually needs to be kept or removed, especially on pre-97 XJs.

Any help would be appreciated!


On my 01, it only controls fuel injectors and spark and is ground activated by the PCM. I don't know if it's the same on your year but you should try to find a FSM and it should lay it out for you.



I would guess that's it's most likely the same in that it would only disable powertrain function so shouldn't matter to you.
 
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