B18C1 - is mine a OBD1 or OBD2
06-01-2005, 06:27 PM
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B18C1 - is mine a OBD1 or OBD2
I have a 1994 Integra RS with a B18C1 swap (just bought it). Does anyone know how to identify what OBD version it is? I suppose I could look for a manufacture date on the block, but I don't know what the cutoff date for the last of the 95/OBD1s is and when the 96/OBD2s start.
I suppose it would have to have an OBD2-OBD1 conversion harness if it's from a newer teggie, but I don't know where that would be located. Any ideas? Would it even have a conversion harness if both the ECU and the engine are OBD2?
Much thanks.
I suppose it would have to have an OBD2-OBD1 conversion harness if it's from a newer teggie, but I don't know where that would be located. Any ideas? Would it even have a conversion harness if both the ECU and the engine are OBD2?
Much thanks.
06-01-2005, 08:20 PM
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um i think you can check the alternator and see if it has a sensor on it...on the obd2 the distributor and alternator are different and have sensors i believe...any pics of your car?
06-01-2005, 09:31 PM
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pic of engine bay
This pic doesn't focus on the alternator, but this is what's in the engine bay.
I just bought the car and it is misisng a couple of key pieces (the distrib, battery, plug wires, intake). I'm hoping to pick up a few pieces tomorrow (including the dist), but of course I need to know what OBD vers the dist should be.
I just bought the car and it is misisng a couple of key pieces (the distrib, battery, plug wires, intake). I'm hoping to pick up a few pieces tomorrow (including the dist), but of course I need to know what OBD vers the dist should be.
06-02-2005, 05:46 AM
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um...i don't think you need to know what vers the distributor should be because you can make an obd2 engine obd1 by putting the obd 1 distrubutor and alternator on it. Someone correct me if im wrong.
06-02-2005, 05:51 AM
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Look at the oil pump housing. If it has a sensor coming out of it, it is OBD2. If not, OBD1.
And don't listen to anyone in this thread about OBD1 vs OBD2 distributors and all sorts of crap. You can install an OBD2 engine in an OBD1 car without any modifications whatsoever.
And don't listen to anyone in this thread about OBD1 vs OBD2 distributors and all sorts of crap. You can install an OBD2 engine in an OBD1 car without any modifications whatsoever.
06-02-2005, 06:03 AM
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Originally Posted by qtiger
Look at the oil pump housing. If it has a sensor coming out of it, it is OBD2. If not, OBD1.
And don't listen to anyone in this thread about OBD1 vs OBD2 distributors and all sorts of crap. You can install an OBD2 engine in an OBD1 car without any modifications whatsoever.
And don't listen to anyone in this thread about OBD1 vs OBD2 distributors and all sorts of crap. You can install an OBD2 engine in an OBD1 car without any modifications whatsoever.
06-02-2005, 07:40 AM
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Originally Posted by SP00NFed
If you installed an OBD2 engine in an OBD1 car then you wouldn't have a plug for that sensor on the Oil Pump...therefore wouldn't you have to do some modifications and get an OBD1 oilpump??
No. That plug is totally unneccesary with an OBD1 computer.
06-02-2005, 08:32 AM
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06-02-2005, 07:07 PM
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Thanks for the responses. I have looked at the alternator and I see a large single hose-sized wire with thick insulation and a small green wire harness that connects 4 or so wires.
I guess I will just cross my fingers and buy a OBD2 dizzy and ECU. There probably were more GS-Rs built after 95 than before so the odds are with me, right? Anyway, it should be slightly easier to buy/sell OBD2 parts so I can turn around and sell them if they aren't what I need.
I did take a pic of the Engine code stamp and the engine (build?) date stamp (which baffles me). I will run a search on the forum to find out if the build date decoding has been discussed before.
I guess I will just cross my fingers and buy a OBD2 dizzy and ECU. There probably were more GS-Rs built after 95 than before so the odds are with me, right? Anyway, it should be slightly easier to buy/sell OBD2 parts so I can turn around and sell them if they aren't what I need.
I did take a pic of the Engine code stamp and the engine (build?) date stamp (which baffles me). I will run a search on the forum to find out if the build date decoding has been discussed before.