Tony I got a question you know that engine light I told you about... well I checked it and at first it blinked 4 times then only 1 and continued only one. Now this means that its the o2. Cx only came with one wire o2 and the ex p28 came with 4 right! Now do I need to do a 4 wire o2 conversion and pin it in to the ecu. This is what I found out check it:Originally Posted by JDM_EK4
Using a P28 ECU (and should work for most obd1 ecu's with 4-wire controls) Run O2 Sensor signal (white) To D14
Run O2 Sensor signal Ground (green) to D22 (or any good Ground)
Run O2 Sensor Heater Circuit Control (black) to A6
Run the other black heater circuit power wire to (A25) or any good switched +12VDC source.






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, but try PMing Mr.Kidd and he's bound to have the answer. You can tell him that it was chipped for Uberdata, but then back to basic programing.

