OBDII -> OBDI Conversion
I need sleep...
Joined: Jun 2002
Posts: 3,632
Likes: 0
From: NH
You need a conversion harness to convert your OBD2b factory wiring harness to fit an OBD1 ECU.
Conversion Harness - about $150
ECU - prices vary depending upon where you go...but $200 tops should be about right.
Is it worth the time and money? So far I have not needed it. My buddy with the OBD2 - OBD1 conversion with the GSR swap in his Civic is running real rich and noone can fix it. To me it is not worth it...to others it may be.
Conversion Harness - about $150
ECU - prices vary depending upon where you go...but $200 tops should be about right.
Is it worth the time and money? So far I have not needed it. My buddy with the OBD2 - OBD1 conversion with the GSR swap in his Civic is running real rich and noone can fix it. To me it is not worth it...to others it may be.
I
Joined: Jan 2001
Posts: 56,525
Likes: 0
From: Westside til I die
He's just obd2, not obd2b 
The only reason to do it is to use a Hondata programmable ecu, or to use a piggyback ECU chip, which don't really do anything. I would say it's not worth it as well.
DVP - Do you know what program your friend is running, and what mods he has?
The only reason to do it is to use a Hondata programmable ecu, or to use a piggyback ECU chip, which don't really do anything. I would say it's not worth it as well.
DVP - Do you know what program your friend is running, and what mods he has?
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I need sleep...
Joined: Jun 2002
Posts: 3,632
Likes: 0
From: NH
Dubster
I thought 1998 was ODB2b? Oh well.
My buddy (Slacker on this board) has a 1999 Civic EX with a 1996 JDM B18C (Si-R) motor, and OBD1 USDM ECU and a conversion harness between the ECU and the factory wiring harness. The ECU is stock and not chipped.
We had to do some wiring to get the IAB and VTEC working right since the JDM motors do not have the oil pressure switch on the VTEC solenoid and the factory wiring harness did not have the IAB wiring.
The only mods he has is an AEM short ram intake and a Thermal cat-back exhaust. We also upgraded the fuel pump to a Walbro and replaced the fuel filter and the fuel line from the fuel filter to the fuel rail. He also does not have A/C or P/S.
With all that said he is dumping a lot of fuel and has awefull gas mileage. His back bumper is covered in this filthy black slime and when he steps on the gas there is a large cloud of black smoke that comes out the back.
Acura has no clue, Honda will not touch it, our next step is to get a FPR and see what the pressure is and if we can turn it down
Sorry to hijack your thread Xymox007
h:
I thought 1998 was ODB2b? Oh well.
My buddy (Slacker on this board) has a 1999 Civic EX with a 1996 JDM B18C (Si-R) motor, and OBD1 USDM ECU and a conversion harness between the ECU and the factory wiring harness. The ECU is stock and not chipped.
We had to do some wiring to get the IAB and VTEC working right since the JDM motors do not have the oil pressure switch on the VTEC solenoid and the factory wiring harness did not have the IAB wiring.
The only mods he has is an AEM short ram intake and a Thermal cat-back exhaust. We also upgraded the fuel pump to a Walbro and replaced the fuel filter and the fuel line from the fuel filter to the fuel rail. He also does not have A/C or P/S.
With all that said he is dumping a lot of fuel and has awefull gas mileage. His back bumper is covered in this filthy black slime and when he steps on the gas there is a large cloud of black smoke that comes out the back.
Acura has no clue, Honda will not touch it, our next step is to get a FPR and see what the pressure is and if we can turn it down
Sorry to hijack your thread Xymox007
h: