I'm working on converting a 1988 Dodge Ram 318 2 bbl throttle body to a healthy, 360 4 bbl carb. I'm adding a Mallory Unilite distributor. I would like to use a stock electric pump in my tank by using a fuel pressure regulator before carb. But, I can't get the pump on and there's no spark coming out of the coil (which is new). What am I missing here? -wiring wise.. does something need a jumper wire, or to be by-passed? Can anyone help? Please and thank you!
Problems converting a 88 Ram 318 to a 360
- Thread starter mmadness
- Start date
DodgeAddict
Well-Known Member
I'd check that Unilite How much wiring got cut out or disconnected
The unilite is brand new, and no stock wiring was cut. Is there something that should be cut?
DodgeAddict
Well-Known Member
Most guys go crazy cutting wires when it comes to this swap.
I used to install performance parts in a speed shop & we checked every Unilite before it left or was installed you would be surprised how many come out of the box bad We used a Mallory tester made specifically for the Unilite.
Is there fire at the coil?
I used to install performance parts in a speed shop & we checked every Unilite before it left or was installed you would be surprised how many come out of the box bad We used a Mallory tester made specifically for the Unilite.
Is there fire at the coil?
moe7404
Member
any chrysler V8 that has carburators. the version with 4 bbl has cables, brackets , maybe even fuel lines. are different than a 2 bbl version. if you try to use 2 bbl parts on a 4 bbl carb they will bind and might jam. this includes the the bell crank and bracket it is on. the 4 bbl fitting that the cables ect hook up to is more forward and to the left. it is best to get ALL the 4 bbl parts.
the tbi was computer controlled the fuel pump may not work if it had a sensor that let the computer know the engine is turning over. i am not sure about this just a thought. also my dad put a 340 in a 89 short box that had a tbi and was not getting 12 volts to the coil so check that voltage.
85Rusty
Well-Known Member
If I remember my wiring schematic CORRECTLY for my 90 360, the fuel pump wires went to the computer, then to the tbi. Also, the computer acts as a spark control unit IF I remember correctly lol I'm sure someone with a better memory than mine will chime in and tell us what for...
fuel pump relay
find the fuel pump relay use a jumper wire to the #86 terminal to the battery you should hear the fuel pump run. next remove jumper wire and only hook up wires from the unilite red to positive side of coil green to neg side and brown to ground. also get a coil from a 81 or 82 318/360 that was carburated. then run a jumper from battery to positive side of coil and check for spark. if both of these work you will just need to wire them in the right way.
find the fuel pump relay use a jumper wire to the #86 terminal to the battery you should hear the fuel pump run. next remove jumper wire and only hook up wires from the unilite red to positive side of coil green to neg side and brown to ground. also get a coil from a 81 or 82 318/360 that was carburated. then run a jumper from battery to positive side of coil and check for spark. if both of these work you will just need to wire them in the right way.
79dodge4ever
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the fuel pump is run by the auto shutdown relay, its located on the drivers inner fender and will have a red, green, and two smaller blue wires, the green wire is power to the coil and fuel pump in the factory harness