DPFI -> MPFI -> OBD1 ? ALSO THROTLE BODY AND MAP ? NEED HELP ASAP
Ok guys i am cconverting my 88 std hatchback to mpfi i have a couple questions
first off i am putting in a 94 b18b motor i have obd0 injectors and plugs cause i am running a resistor box. ok so i want to leave it obd1 so i am going to use my harness but convert it to obd1 with the dizzy rywire harness and rywire obd0-obd1 piggy back. but could i use an obd1 ls throtle body cause it has the map and tps on the throtle body and looks cleaner. but on a dpfi it has 2 extra wire thats part of the map heres a pic
what do i do with the black and yellow wire and green wire. also on a dpfi manifold on the harness it has this sensor what is it and do i need it hooked up when i do my swap
also my last question the crank position sensor the 2 wires u have to run from the ecu do the go to the dizzy on an ls i have a picture of my obd0 dizzy dpfi but do i have to run those wire to these
is that the crank position sensor. i dunno that is the part i am confused on. thanks a billion
first off i am putting in a 94 b18b motor i have obd0 injectors and plugs cause i am running a resistor box. ok so i want to leave it obd1 so i am going to use my harness but convert it to obd1 with the dizzy rywire harness and rywire obd0-obd1 piggy back. but could i use an obd1 ls throtle body cause it has the map and tps on the throtle body and looks cleaner. but on a dpfi it has 2 extra wire thats part of the map heres a pic

what do i do with the black and yellow wire and green wire. also on a dpfi manifold on the harness it has this sensor what is it and do i need it hooked up when i do my swap

also my last question the crank position sensor the 2 wires u have to run from the ecu do the go to the dizzy on an ls i have a picture of my obd0 dizzy dpfi but do i have to run those wire to these
is that the crank position sensor. i dunno that is the part i am confused on. thanks a billion
the sensor your looking for is the top dead center sensor. Its on the big dizzy plug its the blue/ yellow and the blue/green if i rember right. as for that other plug on the map its for the purge control silonoid.
do i need the purge control solinoid hooked up cause an obd1 throtle body doesnt have that. also so the 2 wires on the dizzy i just depin those and run the others from the ecu c1 and c2
the two wires you have left over just go to the ecu! i think one is the CKPP and the other is CKPG. i'm doing the same thing right now...dpfi to mpfi and obd-0 to obd-1 i keep running into problems...CKECK OUT THIS THREAD I MADE....a few good links in it.
https://honda-tech.com/zerothread?id=1764359
https://honda-tech.com/zerothread?id=1764359
thanks for the replys but still need to know about the 2 wires on the map sensor and the 2 wires behind the throtle body on the dpfi the black wire and orange wire were do they go
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that plug above your map sensor isnt connected to the map sensor, when i changed mine to the map on the tb, i just unplugged both plugs and plugged the map in on the tb.
those orange wires are for the tandem, the ls doesnt have one so you dont need to plug it in anywhere
those orange wires are for the tandem, the ls doesnt have one so you dont need to plug it in anywhere
so basicly i dont plug in the orange wire the tandem. and the 2 wires above the mao sensor do i leave that one unplugged also or just leave that one plugged in and move the map sensor one to the throtle body. thanks for all the replys
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Honda CRX / EF Civic (1988 - 1991)
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Dec 1, 2010 05:42 PM





