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What is the wire color codes for a 2003 nissan frontier o2 sensor harness?

Specifically, I need to know which is the signal wire for the pre and post o2 sensors. Thanks!

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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johnny5846
  • 379 Answers

SOURCE: location of a o2 sensor 2001 nissan maxima

bank 1 refers to the side of the engine that #1 cylinder is on , and sensor 2 refers to downstream , after the catalytic converter. , this link shows bank 1 on a 2001 nissan maxima V6 being on the firewall side . if you had a 4 cylinder it would be downstream after the catalytic converter .

http://www.autozone.com/N,26200242/shopping/specsSelect.htm



Posted on Jan 04, 2009

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emissionwiz
  • 76649 Answers

SOURCE: Where is the knock sensor located on a 2003 nissan

It is located on the engine block itself in the valley between the cylinder heads. The entire intake manifold has to come off to access it:

Posted on Oct 30, 2009

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ZJLimited
  • 17970 Answers

SOURCE: How do I replace my rear O2 Sensor on my Nissan

In here can find the procedure about O2 sensor replacement: Bosch Universal O2 Sensor Installation Instructions

And here someone images about one typical change O2

Good luck.

Posted on Dec 28, 2009

  • 265 Answers

SOURCE: 1996 Nissan Maxima o2 Sensor Location

check out www.maxima.org

Posted on Feb 05, 2010

  • 752 Answers

SOURCE: I have a 2003 Nissan Sentra SE-R Spec V. o2 sensor location?!?1

theres always one on the intake manifold working its way down to catalytic convertor is the oxygen sensor 1 heater circuit(pre cat conv) signal while terminal #25 is oxygen sensor 2 heater circuit (post cat conv)

Posted on Feb 12, 2010

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Need to know how many O2 wires in Nissan Maxima 03 sE


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Code p0153..p1153


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http://www.obd-codes.com/p0153
Code p1153 Probale faulty oxygen sensor.
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What color wire coming off the engine harness grey or brown connects to the blue signal wire on the 02 sensor which color is the signal wire to the computer


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Hi-Failed inspection at Motor Vehicle Code PO160 (2001 Nissan Maxima). Car runs fine- no dash lights on. Left Rear Oxygen Sensor? Cost to fix or rigg it? Must get this car passed. Thanks in advance,...


CausesPotential causes of an P0160 code include:
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  • Wiring problem, melted harness, broken connectors, etc.
  • Bad PCM
Possible SolutionsIt's always best to do a visual inspection of the exhaust system first. Look for holes near o2 sensors or wiring harnesses coming in contact with exhaust components. Repair as necessary.
1. Start the engine and allow it to reach operating temperature. Using a scan tool, observe the Bank 2 position 2 o2 sensor. If it isn't moving at all this doesn't necessarily mean that anythings wrong. Post cat o2 sensors often switch very little. Increase the engine RPM to a fast idle and then recheck the sensor voltage reading. If it starts switching now, the sensor may be sluggish and/or intermittently going "dormant". Replacing the sensor at this point would be a good idea. Visually check the o2 sensor for contaminates, etc. If you suspect it's contaminated with coolant or oil, replace it. But, if it still isn't responding after increasing engine RPM, turn off the engine and unplug the 2/2 o2 sensor. With KOEO (key on engine off) check that there is 12 Volts battery voltage and a good ground to the o2 sensor heater element. If the heater element has no battery voltage it can cause the o2 sensor to be sluggish and not switch properly which can cause a P0160.
So, diagnose that problem first(there will usually be other codes present). If there is power and ground to the heater element check that the sensor ground is present. If it is, connect a jumper wire between the sensor ground and signal wire. Now the 2/2 o2 sensor reading should be low. If so, replace the Bank 2 position 2 o2 sensor. If, after connecting the jumper wire, the o2 sensor reading still remains "stuck", check for wiring problems, harness contacting exhaust components, or broken connectors. Repair as necessary. Then recheck. If you can find no wiring problems and the o2 sensor reading on the scan tool doesn't change after installing the jumper wire, recheck at the PCM connector. It may be necessary to clip the signal wire near the PCM in a location that will be easy to repair. If it now shows a low voltage reading, then you know beyond a doubt that there is a wiring problem. At this point clipping the offending wire out of the harness and running a new one may be your best bet. But If it still shows no change, the PCM may be at fault.

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2 Answers

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