fuel pump fuse
Thread Starter
Joined: Apr 2007
Posts: 595
Likes: 14
From: Dallas/Lancaster
fuel pump fuse ok im thinking about buying this lt1 fbody that has an ls1 swap into it..... well what happens is the guy told me that when he goes to crank it he hears the fuel pump and all but trys to start it blows the fuse... he said he wired everything right and he thinks it might be the ecu but not for sure... if you need more info i can find out but this is all i know for now if you have any questions or any possible answers with this short knowledge let me know thx!!!
Look at it like this... the car is worth a LOT more running than not running, and it shouldn't take more than an hour or two to track down a short. The guy selling it is either really dumb, or trying to hide something. Either way, do you really want to buy a car that he built?
Thread Starter
Joined: Apr 2007
Posts: 595
Likes: 14
From: Dallas/Lancaster
Well the car is really cheap pretty much buying it for nothing... lets just the car was never started after the swap due to this fuel pump .... and the price is less then a fbody roller! comes with full set of draglites aftermarket lcas swaybars panhard lowering springs 98+ fbody dash new seats built 4l60e f1 cam ported heads fast 90 intake and tb etc... dont really want to give away the rest... lets just say its no 346
You could always wire it through it's own relay, and not through the computer. You could buy a relay and just temp wire it. I know Painless has a kit for about $45 with a base and a lot of wire.....that would at least tell you if it is the computer, which I don't think would keep the pump from working, without being wired wrong.
All the computer does is ENABLE the fuel pump relay, just like you turning the key in the ignition ENABLES the radio. The power for the fuel pump doesn't go through the computer.
All the computer does is ENABLE the fuel pump relay, just like you turning the key in the ignition ENABLES the radio. The power for the fuel pump doesn't go through the computer.
Thread Starter
Joined: Apr 2007
Posts: 595
Likes: 14
From: Dallas/Lancaster
cool thx for the diagram ... but now is there away you can actually show me how its suppose to be hooked up like what wires connect to what ... i guess you can say rig it?
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pcm controls the ground for the FP relay. The pump wire should be fused before the relay then will run through the FP relay to the pump. The pump should be chassis grounded. The FP relay +12v control should be ignition switched in accy/run/start.
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Originally Posted by Rodder
Look at it like this... the car is worth a LOT more running than not running, and it shouldn't take more than an hour or two to track down a short. The guy selling it is either really dumb, or trying to hide something. Either way, do you really want to buy a car that he built?
