Anyone have OBD2a to OBD2b ecu pinout

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RedLineHatchSi

Junior Member
sup guys, Im doing a converter harness to use the 99-00 Si ecu on my 97 hatch cx w/ 99 si motor. I kinda have a converter harness i just made, but when I plug the ecu to it, the engine won't start. Is there anyother extra pins I have to add to my engine harness? can anyone help plz.... thanks
 
I kinda have a converter harness i just made, but when I plug the ecu to it, the engine won't start.


Ok. Let's start over. What does you converter harness consist of?
 
Well, I have a obd2a --> obd1 harness I made, but I want to use the Si ecu to see how the car runs. so I add the obd2b plugs to the obd2a connector, but I notice theres 4 wires I dont know where to go, its A3, A4, A19, and A29 on the Si ecu pinout.
 
Originally posted by bustah49@Feb 1 2004, 10:15 PM
:eek:
ok
a3 2wbs...unknown
a4 vsv....unknown
a19 nep...unknown
a29 ftank...i think a sensor that will throw the code91

I dont know where those pins go on a 97 cx harness
 
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