k guys ive been on this project for long long time and we now have the car running...its a 89 hatch with a jdm b16 2nd gen i think...well thats what the guys at the shop told us. okay now my question is what ecu should this 2nd gen b16 be running on ? ive searched n all i found was for 1st gen b16... please help me n i will show u pics of the pr4 ecu we have in the car....ohh yeah n im not really sure if the motor is a 2nd gen...amma take pics and hopefully u guys can help me out...this obd **** is pissin me off...thanks in advance

 

1st gen is pr3 obd 0
2nd gen is p30 obd 1

What color is the plug on the distributor?
Look on the head between #3-4 cylinders exhaust side. You'll see 4 sets of numbers labeled 8/9,9/0, etc... The one the left is the year the head was made.


Modified by eda6 at 11:33 PM 11/10/2004

 

First of all, it depends on your wiring tactics. If you left all the wiring the way it was, and did only minor modifications to it, you should be running the first generation obd0 b16 ecu. Technically, if you have a 2nd generation b16, its an obd1 motor, but who ever wired the car must have wired it to be obd0. Meaning they probably change the obd1 distributor, and replaced it with and obd0 distributor. Thats the only way your PR4 ecu would work, since obd0 and obd1 ecu are not compatible with each other. Obd0 and obd1 ecu's have different ecu harnesses. Your car is obd0, so the only one that would be a direct plug in is the obd0 first generation b16 ecu. Hopefully this helps.

 

Also check what color are the plugs near the injectors and distribitor? Grey or milky white? Grey is OBD1 and milky white is OBD0.

 

hey thanks guys for your responces. im taking pics of the ecu the block the dizzy the o2 sensor cuz maybe it can help determine what 0bd this car really is