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Japan OBD-II wiring question

Old 05-25-2007, 12:34 PM
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Default Japan OBD-II wiring question

HI! i'm converting a canadian CX Civic 98 into a 96 GSR with a 37820-P72-013 ECU, but all run good but i can't get my obd-ii code reader to read the code of the p72, but when i connect the stock ecu i reads ok! is there any wiring modification to do to make it work thanx!
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Old 05-25-2007, 01:32 PM
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Default Re: Japan OBD-II wiring question

you need a jdm code reader, noob.

either that or rewire the code reader to japanese wiring pinout standards on the plug
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Old 05-26-2007, 01:52 AM
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Default Re: Japan OBD-II wiring question

I may be wrong, but if I recall correctly I believe the 96+ JDM ECUs are not OBD2, they have none of the OBD2 codes.

Jump the service check connector in the pass footwell and treat it like an OBD1 ride.
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Old 05-26-2007, 02:11 AM
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Default Re: Japan OBD-II wiring question

Originally Posted by Joseph Davis
I may be wrong, but if I recall correctly I believe the 96+ JDM ECUs are not OBD2, they have none of the OBD2 codes.

Jump the service check connector in the pass footwell and treat it like an OBD1 ride.

bingo
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Old 05-26-2007, 10:05 AM
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Default Re: Japan OBD-II wiring question

Originally Posted by chris

bingo

was his name-o
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Old 05-26-2007, 11:27 AM
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Default Re: Japan OBD-II wiring question

Kool thanx !! i have been OK to remove all the steady fault code but now i got a 20-21-23 code when i rev the engine past 5 000 rpm.
21- is the vtec spool solenoid, and i don't think i got one on this engine
23- Knock sensor and i don't have on either.

and when the cell light up, the engine is runny bad no more power? can someone point me to something ?
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Old 05-26-2007, 02:39 PM
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Default Re: Japan OBD-II wiring question

um b18c has vtec and a knock sensor
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Old 05-26-2007, 03:27 PM
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Default Re: Japan OBD-II wiring question

Yes it have the Vtec solenoid but no vtec pressure switch, this is a japan engine and there is no knock sensor on the block!
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