whats obd/1/2? what is that stuff?
10-24-2004, 06:19 PM
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Originally Posted by Kai
Reusing your stock harness and swapping in OBD-0 injectors and distributor. Other slight tweaks may come up, it's as easy as swapping plugs.
10-24-2004, 11:17 PM
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Originally Posted by Mackenzie C
what about the ecu and all that?
Originally Posted by Mackenzie C
so to back dat a b18c R to obd0 you would need to change the distrubitor and injectors, from what car though?
10-24-2004, 11:24 PM
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Originally Posted by Kai
OBD-1: 92-95 Honda cars. This is where it starts getting annoying, more codes are added and it gets a little more bitchy about certain things. It is the last of the one 02 sensor systems (except for the DOHC VTEC engines, which always had two.) Low impedance injectors. Grey plugs.
10-30-2004, 05:48 PM
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Originally Posted by Kai
... I already posted comentary on that. The higher the OBD level, the less forgiving the ECU is. I've added a picture for reference, it shows an OBD-0 ECU on the bottom, OBD-1 next up, an OBD-2 second from top, and an OBD-2B on top. I don't have a picture of a pre-OBD ECU at the moment, but can take one if you really need it. Use a distributor from a first gen B16A (excluding the '92 XSi/RSi) and injectors from the same, a 90-91 US Integra, or 88-91 US Civic Si. There may be a few different plugs here and there that can be swapped, plus adding wires for VTEC operation. Use a PR3 or PW0 ECU, preferably with a V-AFC to tune the fuel curve. Remember, a B18C5 swap will cost about four times more then the rest the car is worth.
holy sheit having a obd-0 is kind of a nice thing then. so how the hell are you suppose to run vtec on that ecu?
10-30-2004, 05:58 PM
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alright new question. if i where to swap a obd2 motor in my hatch, what exactly would i need to do to these ecus and wirings to make it run right? get a new ecu, keep stock harness?
10-30-2004, 06:48 PM
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Originally Posted by Mackenzie C
what exactly would i need to do to these ecus and wirings to make it run right? get a new ecu, keep stock harness?
Originally Posted by ED9man
that top ECU scares me.
10-30-2004, 09:52 PM
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Originally Posted by Kai
It is the level of complication of the onboard electronics. Each has different plugs on the ECU, injectors, and distributor to avoid mismatches.
Pre-OBD: everything '87 and before. They don't care a whole lot about what you do, and don't trip codes often unless something is completely gone... in which case it still doesn't care much.
OBD-0: 88-91 Honda cars. It gets a little more busy, but is still really simple. High impedance injectors. Cream plugs.
OBD-1: 92-95 Honda cars. This is where it starts getting annoying, more codes are added and it gets a little more bitchy about certain things. It is the last of the one 02 sensor systems (except for the DOHC VTEC engines, which always had two.) Low impedance injectors. Grey plugs.
OBD2/2a: 96+. They are the devil. Stay far away from them.
Your car is an OBD-0.
Pre-OBD: everything '87 and before. They don't care a whole lot about what you do, and don't trip codes often unless something is completely gone... in which case it still doesn't care much.
OBD-0: 88-91 Honda cars. It gets a little more busy, but is still really simple. High impedance injectors. Cream plugs.
OBD-1: 92-95 Honda cars. This is where it starts getting annoying, more codes are added and it gets a little more bitchy about certain things. It is the last of the one 02 sensor systems (except for the DOHC VTEC engines, which always had two.) Low impedance injectors. Grey plugs.
OBD2/2a: 96+. They are the devil. Stay far away from them.
Your car is an OBD-0.
Wow, great explanation!!
-PHiZ