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View Full Version : 96 Prelude SI OBD1 JDM H22 Help PLZ!!!!


GaGen2Teg
08-30-2009, 09:29 PM
Alright helpin my cousin swap a OBD1 h22 into his 96 prelude si h23. I reused the h23 harness, wired up vtec, re-used the obd2 h23 distributor.

Tried to crank the car no spark.

I know obd2 has that crank position sensor i didnt swap the oil pump over so it not plugged in.

I read online that i can rewire this crank sensor plug to the Obd1 jdm dizzy. how do i go about that.

ANY HELP WILL BE GREATLY APPRECIATED...reps also
Barefoot
08-30-2009, 10:47 PM
http://technet.ff-squad.com/ckftrick.htm
GaGen2Teg
08-31-2009, 07:32 AM
that will work for the prelude??
Formally...
08-31-2009, 08:17 AM
That is just for the civics and integras. The Preludes and Accords don't have the CKF(crank fluctuation sensor). The H23 dizzy you have has a 4 wire plug and a 2 wire plug correct? That means that only one of the three sensors needed (CYP, TDC, CKP) are in the dizzy. The other two are on the oil pump and use the timing belt gear and balance shaft pully to read from. The JDM H22 dizzy has a 8 wire plug and a 2 wire plug. This is because all three sensors are in the dizzy. You will need to run the wires in the engine harness that normally plug in down by the oil pump over to the dizzy and use the JDM H22. You will also be changing from a external coil to an internal coil.
GaGen2Teg
08-31-2009, 08:40 AM
thats exactly what i was thinking....ill try it and see if it works THANKS!
EmminoDaGreat
08-31-2009, 10:26 AM
Let us know if you need it fixed :)
GaGen2Teg
08-31-2009, 10:45 AM
alright what wires need to be wired where? i have to take the 4 wires from the plug near the oil pump and wire them to what wires on the JDM dizzy.

obd2 distributor plug has:
thick orange wire
thick black wire
thin yellow/green
thin yellow

obd2 crank sensor plug has:
red
white
blue
green

the obd1 jdm dizzy has:
yellow/green
blue/green
orange/blue
orange
white
white/blue
blue/yellow
EmminoDaGreat
08-31-2009, 11:01 AM
It would be hard to explain, type up on the net, but I will see if I can word it ok for you.
GaGen2Teg
08-31-2009, 11:04 AM
alright i think it goes like this havent had to look at all the diagrams but im sure im close to being 100% right just unsure of 1 thing the JDM dizzy only had 7 wires.

heres how i think it goes...any body i need help
yellow/green to yellow/green

blue/green to blue

orange/blue to idk what green wire its suppose to connect to...the one from the crank sensor or from the obd2 distributor plug?

orange to yellow

white to black

white/blue to red

blue/yellow to white

besides the orange/blue to green i think i got it right...i just dont know if the orange/blue connects to the obd2 distributor plugs or the crank sensor plug.

either way i will have a left over green wire....

HELP anyone?
GaGen2Teg
08-31-2009, 12:58 PM
alright re-wired cranks but still doesnt start...
EmminoDaGreat
08-31-2009, 01:04 PM
did you jump the ext coil plug? so it will fire.. green wire runs to it as a signal wire.
GaGen2Teg
08-31-2009, 01:12 PM
how do i do that?
EmminoDaGreat
08-31-2009, 01:14 PM
There is a square plug w/ 3 wires, jump the two fat wires (connect them together)
GaGen2Teg
08-31-2009, 02:11 PM
starts but is runnin funky...lots of smoke
EmminoDaGreat
08-31-2009, 02:20 PM
bring it by.
GaGen2Teg
08-31-2009, 03:51 PM
it runs good my cousins header is just cracked...thanks for all the help everybody!
GaGen2Teg
08-31-2009, 04:00 PM
one last thing should i be using the obd1 h22 injectors or the obd2 h23 injectors?
Tech5
08-31-2009, 04:08 PM
h22 injectors the h23 has a differ flow rate and the h22 is better
GaGen2Teg
08-31-2009, 04:09 PM
thanks that is all
GaGen2Teg
09-01-2009, 09:28 AM
alright one last problem!!! car is overheating and heat isnt working. fan wont kick on. Ive slimmed it down to a couple problems.
1. thermostat
2. the h23 had a sensor on the top radiator hose connection gunna put that on the h22
3. switch out radiator and fan
4. flush cooling system
5. waterpump

anybody got any ideas?