first off i have a 1993 GSR integra which is an obd1.....(grey plug), OR IS IT????? i recently purchased a OBD1 pr3 ECU(from japan)......the problem is that i have a couple of codes which are code 41 and code 20.......i think the reason that i am throwing the codes are that i need a 4 wire O2 sensor....my car came with a 1 wire O2 sensor...but i dont understand since my car SHOULD be a OBd1??????

has anyone experienced this problem? please help...or if anyone has wired up a 4 wire O2....i know of people putting in p28's in a crx or a NON obd car using a jumper harness....so i am sure it is possible....please help...thanks

 

1. Your car IS OBD1. , 2. Remember that a PR3 ECU will have a speed limiter stock . , 3. I don't really remember about the O2 sensors Good Luck!