Obd1 to obd2b question?? Please help!!!!

[Grnblur]

I have a 94 gsr shell that is obd1 and a B18C1 motor out of a 2001 gsr which from what I read is supposed to be obd2b. So my question is what ecu am I supposed to use cuz the obd1 ecu will run the engine but I have no spedo readout or tach. I need this fixed asap. any likes to websites or personal knowledge is greatly appreciated thanks.

[Grnblur]

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[twinj]

Use the 01 GSR ECU. Then use the OBD1 to OBD2b conversion harness.

[Grnblur]

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[Grnblur]

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[1NonlyAccord]

i have the obd1-obd2b conversion harness when you need it.$75bucks.brand new never used.

[EmminoDaGreat]

You have an obd2b to obd1 harness, not the other way around.

You need to use an obd1 p72, you have wiring issues, for your tach... and prob have a bad speed sensor, or corrosion etc.

[Grnblur]

good good i was starting to think my mechanic screwed me but i guess he knows his **** about swaps now I just have to find the problems.






You need to use an obd1 p72, you have wiring issues, for your tach... and prob have a bad speed sensor, or corrosion etc.

have you had any experience w/ tach problems, like where should i start? I have checked all the wiring inside the car by pulling the dash out but nothing was cut or damaged at all, I cant see anything under the hood unpluged or damaged, could it be a problem with the different year model wiring pin placement. And also some other info the tach does nothing but the spedo is constantly at about 20mph with the key on and around 50 to 60mph when the engine is running???


thanks for all the help sofar +reps to all:goodjob:

[twinj]

^^ Check all the connections to your alternator. For the tach jumping around.

[EmminoDaGreat]

Its a blue wire in the dizzy wiring, that is not connected. If you look there is probably a wire on your shock tower that isnt hooked to anything it needs to go to that.