OK so I just bought a OBD0 to OBD1 conversion harness and I have a question on the wires that I have to manually wire up.
Connector A
Pin 23 PGI power ground
Pin 25 IGP2 Power source
Pin 26 LGI logic ground
Connector B
Pin 1 IGP1 Power ground
Pin 2 LG2 Logic ground

 

anyone???

 

found this on youtube helped me

 

you shouldnt have to wire anything up except for the sensor wires that go to the engine bay (vtec, o2, etc..) unless of course your car is a dpfi chasss. in which case the jumper wont work unless you first set up your car for mpfi

 

I have a CRX SI so it has mpfi. I bought a ebay conversion harness OBD0 to OBD1 and a rywire one as well just to compare the two. and by the looks of it they are wired totally different i will post up more details after work

 

are you going to be running vtec with this harness?
because the extra wires that you have to run yourself are for the 02 sensor and for the vtec connectors

 

Post some actual pics of what you have.

 

Yes on the vtec and I will be running the wires for the vtec solenoid, vtec pressure switch, knock sensor, map sensor, and O2. Will post pictures later of the differences between the 2 conversion harnesses.

 

Cheap Ebay Wire harness
Connector A
1) Purple wire = Pin 4 Vtec solenoid
2) Blue wire = Pin 6 Primary O2 heater control
3) Green wire = Pin 17 intake air bypass control solenoid
4) Black wire = Pin 23 power ground
5) Red wire = Pin 25 Power source
6) Brown wire = Pin 26 Logic ground

Connector B

7) Pink wire = Pin 1 Power ground
8) Black wire = Pin 2 Logic ground

Connector C

9) Orange wire = Pin 3 Knock sensor
10) Yellow wire = Pin 4 Service check engine signal
11) Grey wire = Pin 6 Vtec pressure switch
12) White wire = Pin 14 primary heater O2

Rywire conversion harness
Connector A

1) Black wire = Pin 4 Vtec solenoid
2) Brown wire = Pin 6 Primary O2 heater control
3) Red wire = Pin 17 intake air bypass control solenoid
4) Yellow wire = Pin 25 Power source

Connector B None

Connector C

5) White wire = Pin 3 Knock sensor
6) Blue wire = Pin 4 Service check engine signal
7) Green wire = Pin 6 Vtec pressure switch
8) Grey wire = Pin 14 primary heater O2
9) Orange wire = Pin 21 Sensor ground
10) Purple wire = Pin 22 Sensor ground

Let me know your thoughts and what one I should use? $25 vs $115

 

bump

 

What actually is your question? Which harness to use? The cheap ebay one or the Rywire one?

The Rywire one.