fuel pump question - Third Generation F-Body Message Boards

trans_am_racing · 04-25-2002, 10:15 PM

last week i swapped my motor and trans out of my 87 ta , it was 305 cc q-jet, the car that i put it into was an 89 v-6 mfpi, i hooked everything up and went to crank on it and it started to gush gas out of the top of my car so i un-hooked the fuel pump in the tank and she runs fine for the most part but now my fuel gauge dosent work, if i hook the pink wire that controls the gauge it works, but with having the one wire, will it run the pump in the tank at all......?

Jester · 04-25-2002, 10:18 PM

You can't run a carbed motor on a MPFI fuelpump. You'll need to either change the pump, or put on a 3 port bypass-style regulator.

trans_am_racing · 04-26-2002, 05:12 PM

where would i be able to get a 3 port by pass at and how much do they usually go for?

Jester · 04-26-2002, 07:44 PM

You can get one from Summit or Jegs, and they run about $80.
Better off replacing the pump.

2ponchos · 04-27-2002, 02:08 AM

TA_racing u can get the regulator its a mallory part #4309 its 74 dollars out of summit or jegs hope this helps