88 CRX Si OBD-2 conversion

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Jul 15, 2005 | 11:52 PM

#11

PacificDude

Sharkbait OOHAHA!

Joined: Sep 2004

Posts: 2,982

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From: Held hostage :o

bump :happysad:

Jul 16, 2005 | 08:38 AM

#12

Fire

wanna run

Joined: Aug 2004

Posts: 4,561

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distributor and ecu mainly. few sensor differences...you should just convert the vehicle to obd-1. not a huge deal. stay the friekin heck away from obd-2 though.

Jul 16, 2005 | 01:09 PM

#13

sonicrex

Dub L

Joined: Jun 2002

Posts: 170

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From: SoCal

Quote:

Originally Posted by PacificDude

Now that I'm seeing this I have a question. Does all this OBD stuff just relate to the head, ignition, and ECU? Cause if I'm gonna do a GSR swap then I have to get these components that are wired for OBD1? So am I right in saying that even if I got a newer B18C1 block I would need to get a head and ECU from a 94-95 GSR to stay away from wiring headaches? I don't really know which OBD version is best for tuning, I was just figuring getting the ECU with whatever GSR motor I end up getting then adding on the s200 Hondata system (They're coming out with an s300 system available August 1st). Can someone clear this up, I'm

OBD was a term originally invented to describe the mandatory regulations all US auto manufacturers were to follow pertaining to vehicle emissions. OBD1 was the first set of emissions rules that were required for vehicles. The rules for OBD1 weren't very strict and therefore these cars are easier to tune. OBD2 was a much stricter set of emissions rules valid for all cars 1996 and newer.

Since OBD is emissions related, many components in a car tie into making it work. The most obvious of these components is the ECU and the wiring through which it sends and receives signals.

OBD1 is easier to tune. If you do buy an OBD2 motor, you do not necessarily need to buy an OBD1 head and wiring harness to make it run correctly. There are a number of ECU combinations you can run(depending on chipping, etc), however if you do have a 94-95 GSR ECU, it will make the process easier.

When all's said and done, an OBD1 motor is the easiest for a swap, but it is definitely possible to swap in an OBD2 motor.

Have fun!