2000 Jeep Wrangler O2 Sensor Wiring Diagram

Since question pops from time-to-time, here's easy follow diagram illustrates they when your. Forums. posts Unanswered threads Image search. Shop. . Official Jeep Wrangler TJ Oxygen (O2) Sensor Thread. Thread . Sensor 2 (Downstream) 2000 NGK #23122 - Bank 1, Sensor 1 (Upstream) NGK #23506 .

EDIT, subject line it's 2000. are 4 O2 sensors a 2000. the FSM: Upstream: Downstream: edited: Feb 8, 2024. Reply. Huckster . same wiring diagram 02 sensor . Reply. hear Can't type. Lifetime Supporting Member. Joined Oct 18, 2020 Messages 4,316 . consider Jeep Wrangler TJ be last true .

I a thread 2013 illustrated pin and wiring diagram the 02 sensor Bank 2 Sensor One. have issue Bank 2 sensor 2 wiring. . O2 2/2 HEATER CONTROL: 1: K399: 20: BR/GY: O2 2/2 HEATER CONTROL: 2: Z902: 20: BK: GROUND: 2: Z902: 20: BK: GROUND: 3: K904: 20: . forum community dedicated Jeep Wrangler owners .

According the FSM (8W-30-21) harness wiring colors the sensor connector are: terminal 4 tan/white stripe is PCM O2 sensor signal terminal 3 black/light blue stripe is O2 sensor ground PCM terminal 2 brown/white stripe is O2 sensor heater control PCM

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According the diagram have, wiring the O2 sensor the colors, etc. Possibly could it a guide. just looked again, wires the in upstream connector, connector appears same for it's grey of black. should able use as example. Pic--

Connect black wire the sensor the Black/Dark Green the Jeep harness - sensor ground/earth. gray wire the sensor the Brown/Yellow - sensor signal. Connect two white wires the sensors heater circuit the Dark Green/Black Black wires the Jeep doesn't matter way they connected.

wiring diagrams.pdf. 502.5 KB Views: 62. 1995 Jeep FSM.pdf. 54.3 KB Views: 54. owns 1995 Jeep Wrangler Rio Grande. . my YJ an early 4.2 the O2 sensor all wiring it long gone. was one wire sensor a carbed motor. . forum community dedicated Jeep Wrangler owners enthusiasts. join discussion .

2. best to remove sensor to hammer the ceramic of o2 sensor. Disconnect sensor, cut wires, hammer the long protruding ceramic end. will you hammer standard 22mm socket the sensor. 22mm standard socket ended fitting tight the sensor it severely .

As was inspecting wire harness, seems has "fixed" before. wires hacked and actual connector broken. have new sensor, I to sure wires match properly. repair manual showed color the wire the connector, no they match with sensor wiring.

Those 20 seconds, O2 sensor input not for fuel injector pulse calculations the system be open loop. soon the 20 seconds passed, will into closed loop the O2 sensor input be used. you disconnected battery, the previous fuel trim figures be lost you wil start zero.