I have a 91 accord dx. I need to know what you have to do to switch it over to obd1. H22a.org doesnt tell you how cause they did a 92(obd1). Any help would be greatly appreciated.

 

you are obd1. anything pre-96 is obd1.

 

nope sorry evrything from 92-95 is obd1 .

 

Your best bet is to find a 93 to 95 prelude si VTEC ecu. If you can get a copy of the electrical schematics for both your car and whatever car you get the ecu from you can make the nessecary changes to the wiring in the ecu connectors. That is what I did for my swap. Your 91 is obd1. Before I got my vtec ecu, I was running a 90 accord ecu with a vtec controller with no major problems.



[Modified by 93acclude, 3:11 AM 8/1/2002]

 

the ecu is plug and play with the 91 harness...even tho the car wasn't obd1 everything still plugs up...91 and 92 cars are basically identical

 

Thanks for the help!! I just wanted to be sure before I jump on in. Isn't there only 4 wires that need connected? What do I have to do about the engine mount on tranny? I've heard to shave it a little , is this true?Thanks again guys!!