wich ecu do i need to pass obd2 diag for emissions. i have 97 hatch with h22a. i am running p13 and is the transformation to obd2 difficult ,will i lose power?is it possible to pass and switch back to obd1? i dunno im getting lost my self sorry

 

i belive what a conversion harness does is let you use obd2 wiring harness/ distributor/ alternator and use an obd1 ecu correct me if im wrong?

if this is true geta obd2 a prelude vtec ecu isn p13 obd1? 93 up vtec prelude

 

doesnt obd2 have two o2 sensors ? how do u get around that

 

you will need the OBD-II ecu from the 97-up preludes. how did you wire up your obd-I P13 to work with your obd-II car?

what engine harness did you use?

 

stock harness with obd1 adapter harness and then ran the extra wires needed