Fuel pump killswitch

JDMstealthToast

JDMstealthToast

Member
Trying to make a killswitch to help prevent theft. I pulled up a wiring diagram of the fuel delivery system and I'm trying to run a switch into the power wire for the fuel pump. Can someone help me identify which wire color I should use? I think it is the db/or I just want to make sure I'm reading this correctly.

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I also have this pic to go off of. I guess I just need to buy a switch and 16 gauge wiring. From my understanding I just cut the fuel pump control output wire and feed the new wire into where I cut and connect it to the switch?


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Looks like you could try pulling fuse M25 and see if the jeep dies, or doesn't run. I wouldn't be surprised if it sets off a CEL light though.
 
JDMstealthToast said:
Ya I pulled the fuse and it dies when I do. Also what would cause the CEL to go on if I added the switch and extra wiring?


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It might if there's a voltage sensor like there are for some other parts. Did you get a CEL when you pulled the fuse? What codes did it throw? I'd guess throwing the switch after it's off would avoid it.


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Ya, if pulling the fuse killed the jeep without setting off a CEL light you should be good to go. It's simple things like this that'll foil a would-be-thief. Anything you can do to slow them down or trip them (thiefs) up is a good thing. [emoji106]
 
On my other jeep I just wired a switch into the ground wire to interrupt it. Don't have any pics cause it was top secret...
Need to do it on my new jeep....
 
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