OBD0 to OBD2 questions.
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Honda-Tech Member
Joined: Oct 2009
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From: Russian Federation, Moscow
dizzy.
I'm swapping B20B into CRX'88 instead of old ZC DOHC. Harnes stay old OBD0. so i have a few difficults with connecting dizzy OBD2b to harnes OBD0. My dizzy has 8 wires. but bellow it's written, that there are 9 wires..

and sometimes i meet sheets, where written, that OBD2b dizzy has 7 wires.. (without wire to tach)

where is the truth?
and another question: if i garble, for exampe, CKP+ with CKP-.. what will happy? will the dizzy work wrong? ... or TDC+ with TDC-..
alternator
my harnes has round style plug with 3 wires.. and new one has 4 and square style plug.. the principal question is which wire on the obd0 harness goes to which wire on the obd2 plug.. and where goes fourth wire.. and why i havn't it on my old harnes..
I'm swapping B20B into CRX'88 instead of old ZC DOHC. Harnes stay old OBD0. so i have a few difficults with connecting dizzy OBD2b to harnes OBD0. My dizzy has 8 wires. but bellow it's written, that there are 9 wires..

and sometimes i meet sheets, where written, that OBD2b dizzy has 7 wires.. (without wire to tach)

where is the truth?
and another question: if i garble, for exampe, CKP+ with CKP-.. what will happy? will the dizzy work wrong? ... or TDC+ with TDC-..
alternator
my harnes has round style plug with 3 wires.. and new one has 4 and square style plug.. the principal question is which wire on the obd0 harness goes to which wire on the obd2 plug.. and where goes fourth wire.. and why i havn't it on my old harnes..
Last edited by maddix; Aug 25, 2011 at 11:33 PM.
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