I have a 1999 Miata with a 1997 engine (purchased as is). The engine wiring (1997 sensors) does not mate with the stock ECU wiring and as such the car will not pass emissions. Anyone know the best way to correct this? Some of the issues are that the O2 sensor is not attached, the AC is not wired correctly and the tach does not work. Please reply to the post if you can help or you can give me a call. Thanks.
Barry, 972-775-2929