I've got a b7/z6 mini me going into a 91 crx dx and run into wiring issues.
The dizzy jumper I have has two blue wires one with green stripe other with yellow stripe that are not connected anywhere, where do these go? I thought it was to the ecu but the pins are already filled. As I'm also trying to wire up injectors 2 & 4 to go to mpfi for the mini me. Plugs a7 and a3 on the harness side are filled with one red and one yellow wire. These are the aux injector spots on the dx harness but have wires in them too? I'm lost as to what to do

 

are you using an obd0 to obd1 jumper? as far as the mpfi swap ya a3 and a7 allready have wires in them you wire your injectors to those just cut them and run the wires.

 

Yea I'm using a jumper. Just don't know where the extra dizzy wires go

 

On the OBD0 side there should be 2 plugs for the distributor. One will have 2 wires and the has like 5 I believe. You just connect the dizzy jumpers, it's plug and play.
As you can see in the picture, they both connect right up to your OBD0 harness and connects to your OBD1 distributor plugs.

 

This should help you figure it out.

http://www.boomslang.us/obd0_1.pdf

 

so idk what the deal is but everywhere i've looked says that the obd0 dizzy has 7 pins. Mine has 5 pins(plus two for little plug) I've been trying to make a dizzy jumper but it just doesn't add up

 

What is your OBD0 dizzy from?
Sounds like you probably have a DX dizzy... missing 2 wires because it only runs 2 injectors and not 4.

 

it is a dx dizzy. The Car is a Crx DX

 

well thats the problem. you need a mpfi dizzy. the blue/green and blue/yellow wire are for the ckp (crankshaft position) sensor that is on a mpfi dizzy but not present on the dx dizzy.

this should clear everything up as far as the conversion is concerned

http://hondaswap.com/swap-articles/d...writeup-49557/

 

i have a obd1 mpfi dizzy. The engine is together and it cranks. Now the damn thing won't start. In an effort to get a straight to the point answer I'm gonna explain what i did so far.

After assembling the new engine we dropped it in the car, hooked up all the sensors beside the white plug on the back of the intake manifold and the temp sensor on the thermostat housing.

Wiring: I cut off the two DX injectors and replaced them with two obd1 injectors. Then took two more obd1 injectors and spliced the yellow/black wires into the existing yellow/black wires from the other two injectors. Then took the other wires on the new injectors and ran them into the car and connected them to A3 and A7 on the ecu connector that used to plug into the CRXs ecu(wires were in the two locations so i cut and connected new wire to wire in the connector). I had a jumper harness for the dizzy made that had a blue/yellow and blue/green wire left over since the harness was set up for DPFI OBD0. I ran those two wires into the footwell and connected them to C1 and C2 on the ecu connector(wires were in the two locations so i cut and connected new wire to wire in the connector)

I am using an OBD0-OBD1. I wired in vtec solenoid and pressure switch. I ran four wires to the 4 wire o2 sensor. The jumper i got only had one heater wire(blue) while the sensor had two. I ran the yellow and brown(ground) wire on the jumper to a switch for the ecu. When i turned the key to ON i got a code 1(o2 sensor)

There is power going to the injector heads, fuel in the rail, but there is no gas getting into the cylinders

Anyone know where i f*cked up?

 

Why do people bother to ask for help and then don't take it when it is givin. If you would have taken 2 minutes of time to read the link I gave you, you would be done with the car. I copied it for you;

DPFI vehicles ONLY: Splice the blue/green wire and
blue/yellow wire coming from the 4-position connector on the
supplied sub-harness to the blue/green and blue/yellow wires
on the distributor plug (engine side).

 

i don't have a bloomslang conversion harness. My harness doesn't have a four position connector. It only has the wires coming out for vtec/vtec switch/4 wire o2/3 grounds/2 power/ecu/intake bypass

 

If I read correctly, you turn the key and get an O2 error?
Double check the O2 wiring from the sensor all the way to the ECU.
Maybe you have wires mixed up.

 

yea i got an o2 code. But i don't think that would cause the car not to get gas into the cylinders. The wires on my ecu jumper only had one heater wire, while the sensor itself had 2

 

by not doing the DPFI to MPFI wiring correctly - at the ECU there should be a yellow wire at pin A1 and a yellow wire at pin A3 - these 2 yellow wires connect together inside the harness and become one wire which runs to the auxiliary DPFI injector - there should be a red wire at pin A5 and a red wire at pin A7 - these 2 red wires connect together inside the harness and become one wire which runs to the main DPFI injector - you need to cut the yellow wire at A3 and the red wire at A7 and just leave the portion in the harness - you need to connect a new wire to to each of the wires remaining in the ECU connector at A3 and A7 and run them to the engine - the yellow wire that went from A1 to the auxiliary DPFI injector connects to injector #1 - the new wire from A3 connects to injector #2 - the red wire that went from A5 to the main DPFI injector connects to injector #3 - the new wire from A7 connects to injector #4 - the injectors on the MPFI fire sequentially and if they are not connected to the correct ECU pins, they will not be firing when they are supposed to

at the ECU, you need to move the orange wire from pin C1 to pin B10 - you need to move the white wire from pin C2 to pin B12 - you need to run 2 new wires from C1 and C2 to the distributor for the cylinder sensor - C1 to blue/green and C2 to blue/yellow

 

i did that exact injector wiring. A3 and A7 run to injectors 2 & 4
Did not know i had to move C1 and C2 to B10 and B12
i just connected C1 and C2 to Blue/yellow and blue/green

 

C1 and C2 (blue/green and blue/yellow) are for the cylinder sensor in the OBD0 distributor - pins at the ECU B10 and B12 (orange and white) are for the crank sensor in the OBD0 distributor - the crank sensor wires (orange and white) are located at C1 and C2 on the DPFI - DPFI didn't have a cylinder sensor

 

so i have now connected the blue/yellow and blue/green dizzy wires to C1 and C2. The wires that were there get moved to B10 and B12. Then the wiring should be correct?

B/G____________C1
Dizzy-------------ECU
B/Y____________C2


C1___________B10
Harness--------ECU
C2___________B12

 

anyone know?

 

what you have there is correct.

if you read through the link i posted earlier you'd know that :p

 

alright everyone the beast is running.
I've got codes:
6- Engine Coolent
7- TPS
9- No 1 cylinder position
10- Intake Air Temp
14- Idle Air Control
20- Electric load detector

 

WOW.

I suggest you find a wiring diagram and do continuity checks from the sensors back to the ECU.
Definitely you have incorrect wiring.

 

i don't have coolant or air temp sensor plugged in
I haven't flipped the TPS wiring
have to figure out Cylinder Position and Idle Air Control
then off to figure out my ELD issue

 

Is it running like crap? I have 8 and 9 cel issue. Somehow it is running only two injectors and i have all the wires done correctly. TDC and CYP are the codes. Let me know what you find. And how it is running.
Thanks

 

jrz88dx, yo wats good? so i just finished my dpfi to mpfi conversion as well and have the exact same problem, i had plenty of spark, plenty of fuel at the fuel rail but my computer was not opening the injectors, wut did you do to get it to start, i have quadruple checked my wiring, peeling back all heat shrink to expose all connections and verifiedy all wires in correct location. what did you do to get it to fire up??