Im putting a b18 in my 89 si crx. Will my stock engine harness work?
Can I still use the stock pm6 ecu ?
Thanks for your help

 

What does this have to do with Engine Management and Tuning?

 

https://honda-tech.com/forums/forumdisplay.php?f=18

 

Yes, your engine harness will work and although the PM6 will start and run the B18 as long as it has an OBD0 ignition, you should get it chipped and tuned on Turboedit as there is quite a bit of difference in the fuel and timing maps. The best solution is to convert the CRX to OBD1 using a 92-95 ignition, a OBD0 to OBD1 ECU conversion harness, an OBD0 to OBD1 ignition conversion harness (if you don't know how to re-pin the connectors), and a chipped P28 ECU. It's also possible some of the sensors will need connector swaps depending on the year of the B18.