Question about 2005 Chrysler Town & Country

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O2 sensor giving check engine light, the wiring harness is fine, where can i find the rest of the wiring schematic?

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  • Chrysler Master
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There are 2 places, Autozone gives out free downloads when you register your vehicle on their site and alldatadiy.com

Posted on Oct 30, 2012

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Posted on Jan 02, 2017

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SOURCE: A few days ago the

After replacing the new O2 sensor, the codes need to be cleared to turn of the check engine light. it sounds to me that they only installed the sensor and because in that moment the check engine light was off they didn't erase the code. Yes I think your car is safe to make those trips, but you should take the car to the workshop so they can erase the code whenever you can.

Posted on Jun 24, 2011

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SOURCE: check engine light on in car 2006 pacifica have

Take car to Auto Zone or Advance they can read it for free. You can get the part you need

Posted on Jul 30, 2011

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SOURCE: check engine light came on

check with your dealer some emission parts have longer warranty?

Posted on Apr 07, 2009

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SOURCE: code 344 camshaft sensor ciurcut intermitint 05 pt cruiser

im having exactly the same problem with a 2004 pt. took it to a dealer they told me ecm, replaced it and still the same problem. i changed out the cam knock sensor and the crank sensor. same thing. if i erase the code it will run perferct for an hour sometimes then same thing, light comes on and wont accelerate, over 2000 rpm. weird. im lost, it makes no sence.

Posted on Oct 07, 2011

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1 Answer

P0030 after 02 sensor replacement


check the under hood fuse box there is a fuse in there marked sensor it sends power to the o2 sensors

Sep 29, 2013 | 2004 Kia Rio

1 Answer

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:
  • Holes in exhaust near post cat o2 sensor
  • Bad Bank 2, position 2, o2 sensor
  • 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.

May 14, 2011 | Nissan Maxima Cars & Trucks

1 Answer

Check Engine light code P0432


P0432 - Main Catalyst Efficiency Below Threshold Bank 2
The ECM or PCM monitors the front an rear O2 sensors. The ECM or PCM detects Warm up Catalytic Converter when the sensors are out of specifications.

DTC is set when the ECM or PCM detects rear HO2S value difference becomes closer to value of front HO2S. The ECM or PCM monitors when vehicle speed is 25-60 MPH, load is 22-45 percent and engine speed is 1000-3000 RPM.

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)

Possible causes
- Warm Up Three Way Catalytic converter deterioration or malfunction. - Exhaust system leaks. - Loose front or rear HO2Ss. - Front HO2S malfunction. - O2 sensors harness or connectors

Possible solution
- Replaced Catalytic Converter - Replaced rear O2 sensor - Repair wire harness or connectors

Check it ans tell us news.

Jan 16, 2011 | 1999 Dodge Intrepid

1 Answer

I've changed all of the o2 sensors in my 2004 jeep grand cherokee, and the check engine light keeps coming on, saying the o2 sensonrs are bad


The wiring harnesses for the O2 sensors run right next to the exhaust manifold, and get incredibly hot, sometimes causing the wires within the harness to crack or break. This would cause your problems. Have a look at the harness and let me know what you find.

Oct 26, 2010 | 2004 Jeep Grand Cherokee

1 Answer

Both under constant throttle and acceleration I have had hesitation on three separate occasions over 3 week period the rest of the time it runs fine.


Check the front O2 sensor. I had a 99 Jeep that would stutter and seem to lose power while accelerating. No check engine light came on but took it to a shop and had them put it on a computer. Come to find out that the O2 sensor was giving the engine misreads and was telling the engine to take in more fuel. Causing one of the cylinders to misfire.

Oct 06, 2010 | 1999 Jeep Cherokee

1 Answer

Where Are The sensor Banks On The 2004 GC


Grand Cherokee oxygen sensor locations for 4.0 and 4.7 engines

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Four wires (circuits) are used on each O2 sensor:

  • 12–volt feed circuit for the sensor heating element
  • Ground circuit for the heater element
  • Low-noise sensor return circuit to the PCM
  • Input circuit from the sensor back to the PCM to detect sensor operation

O2S Sensor removal Never apply any type of grease to the oxygen sensor electrical connector, or attempt any soldering of the sensor wiring harness.
WARNING: THE EXHAUST MANIFOLD, EXHAUST PIPES AND CATALYTIC CONVERTER(S) BECOME VERY HOT DURING ENGINE OPERATION. ALLOW ENGINE TO COOL BEFORE REMOVING OXYGEN SENSOR.
1. Raise and support vehicle.
2. Disconnect O2S pigtail harness from main wiring harness.
3. If equipped, disconnect sensor wire harness mounting clips from engine or body.
CAUTION: When disconnecting sensor electrical connector, do not pull directly on wire going into sensor.
4. Remove O2S sensor with an oxygen sensor removal and installation tool.

02S Sensor installation
Threads of new oxygen sensors are factory coated with anti-seize compound to aid in removal. DO NOT add any additional anti-seize compound to threads of a new oxygen sensor.
1. Install O2S sensor. Tighten to 22 ft. lbs. (30 N·m) torque.
2. Connect O2S sensor wire connector to main wiring harness.
3. If equipped, connect sensor wire harness mounting clips to engine or body. When Equipped: The O2S pigtail harness must be clipped and/or bolted back to their original positions on engine or body to prevent mechanical damage to wiring.


Hope thats help (remember comment and rated this).

Apr 29, 2010 | 2004 Jeep Grand Cherokee

1 Answer

Check engine on


This goes to the o2 sensors,you will have to change the harness to match the o2 sensors,unless you changed the manifolds also(exhaust)If you did,just retrieve the o2 sensors from the other engine(Original)and place them in the manifolds you have now.

Apr 17, 2010 | 2004 Ford GT

2 Answers

I need to know what the definition for fault code


The #2 O2 sensor on the cataylitic convertor,could be caused by a bad sensor or bad convertor.

Jun 22, 2009 | 1998 Jeep Cherokee

1 Answer

Check engine light came on.


P1135 means that your O2 sensor has gone bad. The O2 sensor on the Toyota's are called Air fuel sensor's. If you have a 4 cylinder engine, the O2 is on the exhaust down pipe before the catalytic converter, and if it's a V6 it the O2 sensor on the fire wall side along the down pipe from the exhaust manifold. (sensor 1, bank 1) Good luck and keep me posted, check the wire harness. The wire harness could have corroded or burnt from the exhaust, but most likely it's going to be a bad O2. Keep me posted ,be glad to help

Jun 08, 2009 | 2001 Toyota Camry

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