In tank fuel pump help
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Joined: Jan 2007
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From: Northern Ill
Car: 86 Corvette
Engine: 350
Transmission: 700
Axle/Gears: 3:73 Z51
In tank fuel pump help
Have any of you guys kept your intank fuel pump when switching from TPI???...If so how did you wire it...I can run a switched wire to the red lead on the relay and the pump will run..But when I turn the key off the car still runs untill I pull the wire out...Pretty sure it has something to do with the oil pressure relay curcuit because the wired togeather...I know there is an easy way..Got any Ideas
Joined: Mar 2000
Posts: 43,187
Likes: 45
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
You must have tied the ignition power to the fuel pump power somehow. Do you have more detail about the wiring you changed?
Thread Starter
Junior Member
iTrader: (1)
Joined: Jan 2007
Posts: 40
Likes: 0
From: Northern Ill
Car: 86 Corvette
Engine: 350
Transmission: 700
Axle/Gears: 3:73 Z51
Yeah I left the ECU in also...Cause I didnt know if the speedo would work w/o it (dig dash)..I did find the right wire to keep the pump running,,,also went with a TBI fuel pump (a lower volume)..It starts with about 12 # then drops to my 6# adjusted pressure when car starts seems to work fine.....Any other ideas let me know...Thanks
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