Got a friend with a 91 crx hf. That model already came MPFI. I was assuming other than the vtec wiring that is should plug and play. They put is all together and it threw a tps sensor code and cylinder postion sensor. We switched the outer two wires like you would for a DPFI to MPFI swap on the tps and now it works great. But I didnt think we should switch any wires for the CPS sensor. ??? What needs to be done, or is the dizzy bad?? Thanks

 

Assuming the distributor is bad from all the responses

 

i had a code for in my 90 dx b16 swap. the wires in the main harness and the wires at the dizzy were not the same.. try running the wires straight from the dizzy to the ecu through the firewall. i did and code is gone.

 

Ok thanks, ill give that a try this afternoon