I just swaped a dohc zc into a dx sedan ef, I used the stock dx harness and just wired the injector harness that came with the zc to the ecu. the car was starting and running but not to great it's throwing codes 4 and 5 im using a obd0 integra ecu it started running in safe mode and I went to start it the other day it was running on one cylinder.anyone help me on this

 

Well #5 is Map sensor, do you have it plugged in? Or possibly have it swapped with your TPS sensor? #4 is more than likely a loose wire inside the dizzy or it's a bad dizzy. I think part of the problem too might be you using a OBD0 PR4, most people run the PM7 (stock DOHC ZC ecu), PM6 (Stock CRX Si ECU), or pg7 (89 Integra ECU) when putting a DOHC ZC into their car.

 

bump

 

getting spark double checked the wiring, would a bad ckp sensor cause it to not start

 

why are you bumping. Dephtone just gave you a good reason why its jacked up have you tried a different ecu or checked the tps and map sensor?

 

why are you posting

 

Sounds like something is messsed up with the wiring.
http://www.zcspeed.com/DXZCwiring.pdf

 

Either what I said before about the MAP sensor not being plugged in or swapped with the TPS sensor, you may also have forgotten to plug in the vaccum line. I did that yesterday when I pulled my hatch out of the garage, threw a code 5 for MAP sensor and found I had accidently forgotten to plug in the vaccum line.


Have you checked the things I said for you to check? The MAP sensor could very well cause your car not to start.

 

nothings swapped I never unhooked the map sensor when I swapped motors. what vacum diagram can I go by the one on my hood is for dpfi and idk what the hell im looking at, ive got the pcv hooked up but i think thats it. also i havnt changed dizzy's its still sparking but it was throwing the ckp sensor when the car ran.