i have a 91 honda civic hatchback and I need to know what to disconnect from my pm9 ecu so i can hook up my conversion harness.Need to know what to disconnect so I can plug up the conversion harness to the ecu.

 

I just did mine and on my way with my friends DPFI to B16A.

 

what is a pm9 ecu? did it come with instructions?

 

one of my friends took the dpfi harness and went through and added the wires and plugs i needed for mpfi to work with a stock 91 civic ecu, but i need to know what to pull out of my stock ecu so i can add the new pins for the extra injectors and things to the ecu.

 

I think i typed it wrong it may be a pm6 ecu

 

what do you mean plug your harness into the ecu..a dx to mpfi harness has 4 wires that run into the ecu plug and thats it..you also have to switch wires around at b10 and b12..injector #2 is A3 and injector #4 is A7..TDC and CRANK ANGLE are C1 and C2

 

put pins c1 into b10 and c2 into b12

take pins out from b2 and b11

solder a blu/grn wire to b2 and plug it into c1
solder a blu/yel wire to b11 and plug it into c2.

run injector wiring to #2 A3 and #4 A7.

some people like to run straight form the ecu to the dist and injectors, i dont like that because if you ever want to take the motor out with the harness youll run into alittle trouble. i put a connector at the passenger side shock tower to i could disconnect it if i want to.

the blu/grn goes to dist blu/grn
the blu/yel goes to dist blu/yel

switch and extend the tps wires around, you have to extend the iacv wires

oh and the resistor box if running obd0 injector, use the either the power wires from the injector clips or go to the drivers side shock tower and take the power wire from there. find continuity from the injector clips to whatever wire it is

i think thats it??

 

Thats all i needed to know , Thanks that is a big help maybe know i can get this thing running so i can get it to the body shop. Thanks

 

One more Q's my gas pedal is stiff and wont move even with the throttle cable undone from the trottle body it still wont move. Anyone know why?

 

so you cant pull it out or move it in, is that correct?

 

yeah it wont move at all

 

did you try to look and see if you could see any reason why it wont move?

 

yeah, but i cant find anything. i think its something with the pedal and not the cable. it maybe froze up; i will look at it again closer and see if i can give you more details.

 

cable binded up no good