Hi All,
i have a 94 accord wagon CD
at the moment im doing h22 conversion and have few questions about wiring.
- engine is h22a7 from 1999 Accord Euro type R.

- im using the oem h22a7 engine harness which is OBD2B - i know some people say that its alot easier to use the oem CD engine harness which is OBD1 with the OBD1 dizzi too, however im just trying to use all of sensors and let it run as oem as possible... this h22a7 has crank sensor, and few other sensors on intake manifold also has more wires on iavc.

- i use the oem h22a7 ecu. this ecu had imob however i have installed the imob bypass.

- the engine harness has 2 plugs go to the ECU, and 2 plugs go to the dashboard side.

- i have wired up up the last plug on the ECU and engine runs

- however i have 2 questions :

1. this throws MIL / engine check. - iv read some website, the way to diagnose is to jump a small connector on passenger side, then count from the cluster, however when i jump the connectors it keeps blinking non stop for over 100 times. is there any way to check the mil ? or is that not possible to diagnose the MIL when we do engine conversion accross 2 different engine types ? eg OBD2b to OBD1 ?

2. those 2 plugs from engine harness that go to driver side, i cant find the correct color code on those connectors, however iv done some research, tried to find accross all hondas around the same year, try to match the color.
below what iv got, although im still not sure if its correct. please correct me if im wrong on this one

Gray connector
1 yellow/black relay ground
2 black/yellow cmp power
3 white blue rpm
4 x x
5 black/yellow cmp power
6 white/blue rpm
7 black/white coils ground
8 green fan control
9 black/yellow cmp power
10 black/white starter

Green connector
1 yellow back up light switch
2 brown black ?
3 yellow green coolant temp gauge
4 green black ?
5 blue black ?
6 green black ?
7 green black ?
8 yellow red oil press light



and here is the pic of the engine
will post the whole engine bay once the car running


thank you for your time and help

 

this was a little challenge for me as well but i had a f20b6 harness which i strip down and trace the wires along the original harness from the car and yes the harness is the same as h22a7