i swapped out my old h22a4 motor and put in a jdm h22a motor. the new motor won't start after the swap. the h22a4 had a crankshaft position sensor that i did not connect because the jdm motor did not have a crankshaft position sensor. is the crankshaft position sensor inside the distributor for the jdm h22a?

 

i9m not sure but i have heard of having to switch them over ....i know some f22 require it not sure on the h22 but im surfe someone with h22 knowledge will chime in shortly

 

Yes, the CKP & TDC sensors are in the distributor for the OBD1 H22A1 & JDM H22A. Your ECU needs there signals to start the engine.

 

ok thanks, and since my wires are from the obd2 dizzy, how can i make it work for the obd1 dizzy

 

You need to wire the 4 OBD2 CKP & TDC wires that go down to the back of the engine up to the Distributor. I know how to do it via wire splicing but there could be an easier way. I thought I remember reading the H23 dizzy works out easier. Check the prelude forum for JDM engine swap info. I'm sure your not the first....

If you can't find anything in there I can send you a wire diagram of what wires go where.

Cheers

 

will do. thank you so much!!

 

could you send or post the diagram please please! thanks alot!

 

 

just making sure but i splice the wires that went to the old ckp sensor into my obd1 dizzy?

 

Yes don't forget about the TDC wires as well. The OBD2 system has hte TDC & CKP mounted to the oil pump housing. There are 4 wires that need to be spliced/connected to the distributor.

I would use butt connectors or some sort of non permanent, weather proof Automotive connector if you can.

Tyco Electronics

Or you could use the connector off your old CKP/TDC sensor. If you still have it. Cut the connector end off the sensor side (attached to the engine) and splice it into the distributor wiring.

 

hey wassup...how did u wire up da CKP sensor to the dizzy color wise...

 

It should be wired as per the wire colours shown in the diagram above. I have drawn in the OBD2 engine harness wires and connected them to the wire they are connected to in the distributor.

 

FYI: the OBD2 harness does not match up (plugs) with the OBD1 dizzy the best way to do is to take ur obd2 harness and get a obd1 h22 harness or h23 and mate the harnesses its a pain in the *** and pretty tricky but is the most reliable way to do and easiest the harnesses are just too different..... not 100% but pretty sure if you do this (correctly) you will not have to use obd2 to obd1 conversion harness nor obd1 ecu... if anyone needs help with this **** just message

 

can u please help menwith this.ive bought 6 diffrent dizzys already.i swaped my h23 bluetop vtech into my 93 accord wagon.ivw convsrtconverted to coil on plug.at first it poped up code 9.so i changed out dizzy.now code 9 is gone but code 8 pops up now.im using the wire harness from my 93 accord