Question about 2004 Dodge Durango

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Would abad oxygen sensor cause rough idleing and poorgas milelage with mutiple codes

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Yes, very much so, the O2 sensor is one of the most important sensors on cars. The computer uses the O2 sensor reading and other sensors to determine how long the injectors are on.

Posted on May 02, 2010

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2 Answers

Where is oxy.sensor


Usually in the exhaust pipe near the engine.
They don't usually cause a rough idle, and the check engine light should be on if you have a faulty sensor.

Mar 21, 2016 | Cars & Trucks

2 Answers

How many o2 sensors on a 2003 buick rendezvous?


If your vehicle has single exhaust, there are two oxygen sensors.

If your vehicle has dual exhaust, there are four oxygen sensors.

Aug 01, 2014 | 2003 Buick Rendezvous

1 Answer

Bucking rough idle and coding (P0463, P0550, p0037 & U1001)


With that combination of codes I would suggest checking the grounds to see if any have come loose. The first three codes are related to fuel level, power steering pressure, and possibly an oxygen sensor. The U1001 code means that there is a communication issue within the electrical system concerning sensors. When the sensors aren't working together correctly it can cause multiple problems including misfiring and rough idling. Check the grounds first, if they are fine then I would recommend taking it to someone who can check the rest of the electrical system.

Apr 23, 2014 | 2003 Nissan Sentra

1 Answer

P0170 runs rough


code p0170 refers to fuel trim (FT) bank 1--malfunction===causes--intake leak---AIR system fuel pressure/pump/injectors--EVAP canister purge valve--HO2s
It also refers to heated oxygen sensor (HO2S) 3 bank 1--circuit malfunction===causes --wiring---HO2S--ECM

fix the o2 sensor and the purge valve and you may be on the way to fixing the faults.

Dec 26, 2013 | 1993 Suzuki Samurai

1 Answer

Idle rough


tune-up time, also replace your air & fuel filters, check your vacumn lines , check for any trouble codes, ( @ the parts store ) . tighten all bolts @ throttle body, gaskets could be leaking, or sucking air. it could be a number of sensors causing you problems, OXYGEN sensor should always be replaced as a maintenance thing ! balls in your court BOB !

Feb 25, 2013 | 1996 Nissan Sentra

1 Answer

Idles rough and low intermittently. Stalls occaisionally. Error code P1137 pulled off of the computer. 2001 Alero, 2.4L Automatic trans


P1137 is HO2S Bank 1 Sensor 2 Lean Or Low Voltage. Oxygen sensor is reading a "lean condition". This code probably is stored from the rough and low idling. So it sounds like you maybe having other issues causing this P1137 code to come up. For lean conditions read this:
1. Vacuum leaks - check for failed or loose vacuum lines, leaking intake gaskets, intake air tubes loose or any other source of un-metered air leaks (leaks after the Mass Air Flow Sensor)
2. Restricted fuel filter or bent/pinched fuel system lines
3. Incorrect input from other sensors, such as the Mass Air Flow Sensor/cam or crank sensors, which may not always drop a separate code
4. Engine misfire ? Yes I know this one may seem weird. You might think that if there is a misfire then you will have all that unburned fuel and it should read rich; right? Well the O2 sensors read only oxygen content in the exhaust, so if you have all that unburned fuel from incomplete combustion then, you guessed it, you also have all that unburned oxygen. High O2 content in exhaust equals a lean reading!

Sep 07, 2011 | Oldsmobile Alero Cars & Trucks

1 Answer

P1131 manufacturer control fuel air metering. What is the part? The car is Mazda 626 carburator 1997.


Hi Galant5Rov,

Firstly, congratulations to you on identifying the Trouble Code. This code relates to the Heated Oxygen Sensor (H02s)

The oxygen sensors supply the computer with a signal that indicates a rich or lean condition during engine operation (i.e. fuel/air metering).

This input information assists the computer in determining the proper air/fuel ratio. A low voltage signal from one or more sensors indicates too much oxygen in the exhaust (lean condition) and, conversely, a high voltage signal indicates too little oxygen in the exhaust (rich condition).

The oxygen sensors are threaded into the exhaust manifold and/or exhaust pipes on all vehicles.

A faulty oxygen sensor due to loose connections, bad grounds, high resistance in the circuit, or opens in the circuit can cause the following symptoms.
Related Symptoms
  • Surging at idle
  • Unstable idle
  • Running rough off idle
  • Hesitation
  • Stumble
  • Chuggle
  • Poor fuel economy
  • Spark knock
  • Stalling on acceleration
You must take EXTREME care when removing these sensors, as they can be difficult to remove (seize up). You may require a special tool to remove these without causing damage to the sensor.

Cheers,


"If this has helped you in any way, please rate this solution" :-)



Jan 27, 2010 | 1997 Mazda 626

4 Answers

P0171 and p0174 codes


P0171 System too Lean (Bank 1)
P0174 System too Lean (Bank 2)

If a car has a check engine light on and has P0171 and P0174 codes stored, the most likely cause is a vacuum leak. These codes are set by the car’s computer when it sees too much oxygen in the exhaust. Excessive oxygen readings in the exhaust will set lean codes. This does not mean that the oxygen sensors are defective. It is a common mistake for people to replace oxygen sensors when lean codes are present. Just because the code is related to oxygen sensor readings, it doesn’t mean that the oxygen sensors are bad. If both of these codes are stored this means that both banks of the engine have excessive oxygen in the exhaust. If the oxygen sensors are replaced it’s most likely that the same codes will reappear. It is very uncommon for two oxygen sensors to fail at the same time.

Therefore the most likely cause of P0171 and P0174 codes is a vacuum leak. The source of a vacuum leak can be one of many things. The most common cause of a vacuum leak is a leaky hose. Vacuum hoses over time can become dry and brittle. The rubber deteriorates and can leak causing a vacuum loss. Many times a leaky vacuum hose can be found by listening for a hissing sound. A large vacuum leak can even make the car run rough at idle. In some cases it will not idle without feathering the gas pedal.

Sep 10, 2009 | 2002 Jaguar X-Type

1 Answer

What are the symptoms of a faulty oxygen sensor?


bad oxygen sensor will make a car run rough.also mass air flow sensor egr valve sticking open or pvc valve open.idle speed control problems.have your car scan.because there are many sensor causes it to run rough.

Apr 16, 2009 | 1999 Pontiac Grand Prix

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