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OK ive just encountered this little dilemma. As the title suggests, I have acquired a Mugen Race use ECU which is OBD1 and I have a Civic with OBD2 harness and everything.
This is because i have a new engine. A JDM Type R B18 with lots of fruit.
Will i need a new wiring harness ?
Will this new ECU screw up my accessories ?
Myself and the installer are a little nerveous about the installation..
u needa conversion harness. all the pinouts are different. check on US ebay/honda-tech/google forums for one..
or should i sell it off and get a JDM ITR ECU ?
hey adam, pm me if u need a conversoin harness, thats all u need bro
well ive just held the two ECu's together and both plug ends are identical.
so is that saying they're both OBD2 ?
Im no expert on ECu's
take a photo and we can tell you for sure, but yes if there identicle they should plug straight in. OBDII ECu has four connectors, only 3 are used and their are 3 rows of pins
yeah, sorry about the delay.
i did that last night and we were ok.
Both plug ends are identical as OBD2 so im safe now :).
i will post a pic when i can :)