92 cx 4 wire o2 sensor wiring help
i need a pinout or something or the 92 civic cx hatchback, i know it is prewired up to the strut harness for vtec and a 4 wire o2 sensor as well, i got vtec wired up, now i need to wire up the o2 so that this thing will run right and quit throwing check engine lights. if anybody a all has a diagram that can help me out please post it up thank you
hmm i have a 92 with the d15b and mines throwing a check engine light too and ive been reading about the 02 wiring and its made me start to think maybe mine isnt wired right either, when does your check engine light come on? right away? or just after vtec engages usually in second.
Wires on 4 wire O2:
only if cx or dx...
WHITE: Signal Wire
GREEN: Signal Ground
2 BLACK: Both black wires are the heater circuit wires.
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.
(you may mix up the black wires... if car dies after it is warm/10-30 seconds, that's the first thing to swap over and troubleshoot.. theres no way to tell one from the other by looking at them)
only if cx or dx...
WHITE: Signal Wire
GREEN: Signal Ground
2 BLACK: Both black wires are the heater circuit wires.
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.
(you may mix up the black wires... if car dies after it is warm/10-30 seconds, that's the first thing to swap over and troubleshoot.. theres no way to tell one from the other by looking at them)
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