Fuel pump problems HELP!
03-18-2012, 11:54 PM
#1
Staging Lane
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Fuel pump problems HELP! Alright a little back history, last thing I did to the car is put on new modified fuel rails, aromotive reg and then lost the fuel pump. Almost two years latter (this weekend) I put in a new pump and nothing! I swapped out the fuel pump relay with the one from my z28 and nothing. ( I know that one is good)
I know the pump is good because I checked it off the battery and also cheched the old one as well and it was good. So were do I start? Can the sending unit wire harness go bad? I'm lost! This car has been nothing but a pain in the *** since the 383 rebuild mind you the car only has 30,000 miles and it's a 97 ws6 Formula.
I know the pump is good because I checked it off the battery and also cheched the old one as well and it was good. So were do I start? Can the sending unit wire harness go bad? I'm lost! This car has been nothing but a pain in the *** since the 383 rebuild mind you the car only has 30,000 miles and it's a 97 ws6 Formula.
03-19-2012, 01:20 PM
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I don't think it's VATS because I'm pretty sure I had them programed out ( it's been a while since the tune) I did put a test light on the plug were the pump harness plugs into the chassis and had a low signal but had some power but, the light was dim. I'm going to chech it with the fluke after work to see what the volts are at.
03-19-2012, 07:50 PM
#6
Is the fuel pump circuit stock or did you change it? Did you cut the floor? If you did, just get a test lamp and print out the diagram from shbox.com and start checking.
Al 95 Z28
Al 95 Z28
03-20-2012, 01:10 AM
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Yep, I cut the trunk for the pump, I checked the sending unit harness and fuel pump wires and that is all good. I think I'm loosing current at the plug in the floor, but I have to check at the relay still but, I did try my relay out of my z and still same thing.
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03-20-2012, 01:12 AM
#8
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O and yes fuel pump is still wired stock but I also have an inline pump with it's own relay. I was thinking of just running the in tank off of that relay if I don't get this traced down.
