Question about 2005 Kia Sportage

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05 Sportage. Oxygen sensor circuit slow response bank 1 sensor 1. When hooked to monitor heater is supposed to read 1st then catalytic converter. Catalytic converter gets a reading but not the heater. What's the problem?

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  • Expert
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Short to ground in harness possibly check for continuity in the wires from sensor then if wires are good replace sensor

Posted on Feb 16, 2014

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Posted on Jan 02, 2017

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camshaftlube
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SOURCE: will cutting off a catalytic converter help with

First of all, defeating an emissions control device is illegal. With that out of the way, there is something causing that failure, and cutting the converter off will probably not solve the issue unless it's clogged. Converters won't clog unless there is a problem, so this all sort of comes full circle. You have some sort of failure somewhere in your engine's fuel management. A spark plug or some other ignition system component failing, a large vacuum leak, a leaking injector, a failure in some sensor are all possible causes. You have some troubleshooting to do before you start hacking.

Posted on Dec 21, 2010

  • 2187 Answers

SOURCE: check engine light code P0133 02 circuit slow

The problem may not necessarily mean it is a bad sensor. Check first the cabling to the O2 sensor before the catalytic converter.
The slow response may also be due to fuel delivery or air mixture. Inspect first the fuel filter if it needs replacing. You may also have the fuel pressure checked. Try also spraying some tuner spray into the intake to clean the MAF sensor and the intake. The bad fuel mixture may also be caused by dirt. Check also for loose vacuum hoses or leaks. Check for leaks in the intake from the air filter.
You may also need a tune up. Check when this one was done.
Try the suggestions above before replacing the actual sensor.

Posted on May 02, 2011

SOURCE: How do I fix the oxygen sensor Heater Circuit Bank 1 Sensor 2?

In the exhaust converter inlet or pipe before it
for all upsteam sensors


On some small engines like a 4 cyl they are in the
exhaust manifold near the motor

Most sensors use a 22mm or 15/16" wrench or O2
Sensor Wrench or Socket

Sensor 1 is the ones closest to the motor
Sensor 2 is the downstream sensor in converter outlet

I would just change them all as you
just bought it & they probalby never were
changed at 100,000 miles

Do all your vehicles

Posted on Mar 08, 2013

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P2716 bmw 520i


2715 Oxygen sensor heater before catalytic converter, bank 2: Activation
2716 Oxygen sensor heater after catalytic converter, bank 1: Activation
2717 Oxygen sensor heater after catalytic converter, bank 2: Activation

Jul 07, 2016 | BMW Cars & Trucks

Tip

Which Oxygen Sensor Is It?


There are many inquiries online about which oxygen sensor to change. Oxygen sensor failure codes are very common on a lot of vehicles. With all of today's vehicles having at least two oxygen sensors and many having three or four of them, it can be a little confusing as to which one is causing the problem.

Before we get into which sensor is which, we need to have a little discussion about oxygen sensor fault codes. There are several different types of oxygen sensor fault codes. Here are just some of the most common ones:

P0135 "Oxygen Sensor Heater Circuit Bank1 Sensor 1"
P0141 "Oxygen Sensor Heater Circuit Bank 1 Sensor 2"
P0147 "Oxygen Sensor Circuit Bank 1 Sensor 3"
P0152 "Oxygen Sensor Voltage High Bank 2 Sensor 1"
P0159 "Oxygen Sensor Slow Response Bank 2 Sensor 2"
P0171 "Oxygen Sensor Lean Sensor 1 Bank 1"
P0172 "Oxygen Sensor Lean Sensor 1 Bank 2"
P0174 "Oxygen Sensor Rich Sensor 1 Bank 1"
P0175 "Oxygen Sensor Rich Sensor 1 Bank 2"

There are many more possible oxygen sensor codes, but I only listed these to make my point. Many times the oxygen sensor code is NOT caused by the oxygen sensor itself. "Lean" or "Rich" oxygen sensor codes (i.e. P0171, P0174) are usually caused by something other than the oxygen sensor. Something is wrong, causing the engine to run lean (not enough fuel or too much air) or causing the engine to run rich (too much fuel or not enough air). In these cases, replacing the oxygen sensor will not fix a thing. (That is, unless you are trying to fix your bank account from having too high of a balance!) The new oxygen sensor will just set the same code as the original one. This is because the oxygen sensor is not CAUSING the problem, it is only REPORTING the problem.

High voltage codes (like P0152 above) can be caused by the oxygen sensor wires being shorted to another wire inside the wiring harness. Sometimes these codes are caused by bad grounds where some other component is trying to ground through the oxygen sensor circuit. Again, replacing the oxygen sensor will not fix this! In short, the problem needs to be diagnosed before running out and buying an oxygen sensor.

Just because a fault code has "Oxygen Sensor" or "O2 Sensor" or "O2S" in its description does not necessarily mean that an oxygen sensor needs to be replaced. Many do-it-yourselfers believe that all there is to fixing the car is to hook it to the "magic box", collect the fault codes and replace the parts the computer tells you to replace. There is nothing further from the truth.

Fault codes only point you toward which SYSTEM is failing. The system must be diagnosed to find the CAUSE of the failure. If this is not done properly, it will only result in wasting a bunch of your money. This is what you were trying to avoid by doing it yourself!

So, after reading all of the above, if you think you still want to replace an oxygen sensor, but don't know which one; here is how to figure it out:

Oxygen sensors are always numbered like this:

Bank 1 Sensor 1
Bank 2 Sensor 1
Bank 1 Sensor 2
Bank 2 Sensor 2

Some manufacturers use a kind of shorthand that reads different, but means the same thing:

Sensor 1/1 or O2s 1/1
Sensor 2/1 or O2s 2/1
Sensor 1/2 or O2s 1/2
Sensor 2/2 or O2s 2/2

Bank 1 is always the side of the engine where cylinder #1 is located and, of course, Bank 2 is the opposite side.
On a 4 cylinder engine, there is only one bank and it is always referred to as Bank 1. The exception to the 4 cylinder rule is on certain 4 cylinder engines (specifically, some Toyotas) there are two catalytic converters used. In this case, Bank 1 sensors will still be in the pipe for the catalyst that is connected to cylinder #1 and Bank 2 sensors will be in the other one.

Sensor 1 is always the "upstream" sensor (the one located BEFORE the catalytic converter).
Sensor 2 is always the "downstream" sensor (the one that is located AFTER the catalytic converter).
Sensor 3 refers to the ONLY "downstream" sensor where there are two sensors before the catalyst and only one after the catalyst. On very few vehicles the reference to this reads "Bank 1 Sensor 3".

If you do not know where cylinder #1 is, then you need to get a diagram of the firing order for your engine. Just post a question on FixYa.com and make sure you give the YEAR, MAKE, MODEL, and ENGINE SIZE of your vehicle and one or more of our experts will be happy to tell you how to find cylinder #1.

- DTTECH
ASE Certified Master Automobile Technician


Also check out this article by dttech: What Else Could Be Wrong?

on Apr 29, 2011 | Ford F-150 Cars & Trucks

1 Answer

I have a 2001 Ford Focus with the codes p0136 and p0141 showing, what should I do?


both codes refer to O2 sensors. PO141 and PO136. 136 is sensor bank 1 sensor 2. 141 is bank 1 sensor 1. so this info will work on both sensors. This code means that the heated circuit in the oxygen sensor on bank 1 decreases time needed to enter closed loop.
As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0141. See also: P0135 (Bank 1, Sensor 1).
Symptoms You will likely notice poor fuel economy the illumination of the Check Engine Light.
Causes A code P0141 may mean that one or more of the following has happened:
  • open or short to ground in the wiring harness
  • O2 heater circuit wiring high resistance
  • O2 heater element resistance is high
  • Internal short or open in the heater element
Note: Typically a failed catalytic converter does not cause this code. You're more likely to see a P0420 code for a failed converter.
Possible Solutions
  • Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)
  • Repair short or open or high resistance in wiring harness or harness connectors

Aug 05, 2015 | 2001 Ford Focus

1 Answer

I have a 06 Corolla that is giving a P0037 code I have replaced the Oxygen sensor closest to the Catalytic converter Twice


it should be the o2 after cat converter ----and the following information courtesy of OBDP0037 HO2S Heater Control Circuit Low B1S2 OBD-II Trouble Code Technical Description Article by Dale Dale Toalston ASE Certified Technician Generic: HO2S Heater Control Circuit Low (Bank 1 Sensor 2) Nissan: Heated oxygen sensor (HO2S) 2 Bank 1 - heater voltage low What does that mean? Heated Oxygen sensors (HO2S) are inputs used by the PCM (Powertrain Control Module) to determine oxygen content in the exhaust system. Bank 1, sensor 2 refers to the second sensor back on bank 1. The PCM uses the information gained from the Bank 1,2 HO2S mainly to monitor the efficiency of the catalytic converter. Integral to this sensor is a heater element The PCM controls this heater to warm up the sensor to operating temperature. This allows the engine to enter closed loop faster and reduces emissions on cold startup. The PCM continuously monitors the heater circuits for abnormal voltages or in some cases, even amperages. Depending on the make of vehicle, the Oxygen sensor heater is controlled one of two ways. One way is that the PCM directly controls the voltage feed to the heater either directly or via a HO2S relay and a ground is supplied from the vehicle's common ground. The other way would be a fused 12 volt Battery feed (B+) that feeds 12 volts to the heater element anytime the ignition is on and the control of the heater is done by a driver in the PCM which controls the ground side of the heater circuit. Finding out which one you have is important because the PCM activates the heater under various circumstances. If the PCM detects an abnormally low voltage condition on the heater circuit, P0037 may set. Symptoms Symptoms of a P0037 DTC may include: Malfunction indicator lamp (MIL) illumination There will likely be no other symptoms Causes Potential causes of a P0037 trouble code may include: Bank 1,2 oxygen sensor heater element has failed Physical damage to heated oxygen sensor has occurred Control circuit (or voltage feed, depending on system) is shorted to ground PCM Oxygen sensor heater driver has failed === Possible Solutions== Do a visual inspection of the Bank 1,2 HO2S and wiring harness. If there is any damage to the sensor or any damage to the wiring, repair/replace as needed. Make sure wiring is routed away from exhaust. If all appears okay, unplug the Bank 1,2 HO2S and verify that there is 12 volts B+ present with the key on engine off, (or ground is present, depending on the system). Verify the heater control (ground) circuit is intact. If so, remove the o2 sensor and inspect for damage. If you have access to resistance specifications you can use a Ohmmeter to perform a resistance test of the heater element. Infinite resistance indicates an open in the heater. Replace the o2 sensor as necessary.

Read more at: http://www.obd-codes.com/p0037
Copyright © OBD-Codes.com-CODES.com

Jul 28, 2015 | 2006 Toyota Corolla

1 Answer

6troubles codes reportd;PO133N2 SENSOR CIRCUIT SLOW RESPONSE


Don't know the vehicle you have ,so if your
front or upstream oxygen sensors are over
100,000 miles, they need changing, on all
your vehicles ,front only, leave rear monitors
until the converters wear out at 12 years or so

Then you can diagnose what ever is left

You got slow & lean sensors
Their old & tired & lost their switching
ability

Google the codes & read up

Change Spark Plugs every 3 years
Clean MAF Sensor-CRC MAF Cleaner
New Air Filter

Mar 13, 2013 | Ford Cars & Trucks

2 Answers

P0037. heater sen. where is it on the engine?


The code is for the heater in the O2 sensor bank one sensor two. That would be the sensor after the catalytic converter on bank one.
It could be the sensor itself or the power supply for the heater.

Aug 25, 2012 | 2006 Mazda MPV

1 Answer

Im getting code P2253 on my 04 Saturn vue with 3.5l V6. Anyway to tell which O2 sensor it is? Thxs Bill


P0804 is the highest OBD-II trouble code.

Here's your Oxygen sensor codes.

P0130 02 Sensor Circuit Malfunction (Bank I Sensor 1)
P0131 02 Sensor Circuit Low Voltage (Bank I Sensor I)
P0132 02 Sensor Circuit High Voltage (Bank I Sensor 1)
P0133 02 Sensor Circuit Slow Response (Bank 1 Sensor 1)
P0134 02 Sensor Circuit No Activity Detected (Bank I Sensor 1)
P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
P0136 02 Sensor Circuit Malfunction (Bank I Sensor 2)
P0137 02 Sensor Circuit Low Voltage (Bank I Sensor 2)
P0138 02 Sensor Circuit High Voltage (Bank I Sensor 2)
P0139 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)
P0140 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
P0141 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
P0142 02 Sensor Circuit Malfunction (Bank I Sensor 3)
P0143 02 Sensor Circuit Low Voltage (Bank I Sensor 3)
P0144 02 Sensor Circuit High Voltage (Bank I Sensor 3)
P0145 02 Sensor Circuit Slow Response (Bank 1 Sensor 3)
P0146 02 Sensor Circuit No Activity Detected (Bank I Sensor 3)
P0147 02 Sensor Heater Circuit Malfunction (Bank I Sensor 3)
P0150 02 Sensor Circuit Malfunction (Bank 2 Sensor I)
P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I)
P0152 02 Sensor Circuit High Voltage (Bank 2 Sensor 1)
P0153 02 Sensor Circuit Slow Response (Bank 2 Sensor 1)
P0154 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
P0155 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
P0156 02 Sensor Circuit Malfunction (Bank 2 Sensor 2)
P0157 02 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
P0158 02 Sensor Circuit High Voltage (Bank 2 Sensor 2)
P0159 02 Sensor Circuit Slow Response (Bank 2 Sensor 2)
P0160 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)
P0161 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)
P0162 02 Sensor Circuit Malfunction (Bank 2 Sensor 3)
P0163 02 Sensor Circuit Low Voltage (Bank 2 Sensor 3)
P0164 02 Sensor Circuit High Voltage (Bank 2 Sensor 3)
P0165 02 Sensor Circuit Slow Response (Bank 2 Sensor 3)
P0166 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 3)
P0167 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 3)

Note: "Bank 1" is the side of the engine with cylinder 1. "Bank 2" is the other side.

Jul 03, 2011 | 2004 Saturn VUE

3 Answers

P1155 code for a toyota rav4 2002, engine lite came , took to parts store, put on diognostic machine , this code came up. wat does it mean?


Bank 2 sensor 1 Air fuel sensor heater circuit. This sensor is NOT an O2 sensor, though it operates like one and in the same location(in exhaust stream). Basically the PCM detected that the heater circuit was drawing excessive amperage or no amperage. Usually it's a bad a/f sensor and replacing it will fix it, however, it doesn't rule out the possibility of damaged wiring or an open in the power or ground circuit, or a short in the power or ground circuit.

Hope helps (remember rated this).

Aug 17, 2010 | 2002 Toyota RAV4

1 Answer

My 2003 Kia Optima check engine light keeps coming on. I was told "Bank 1 Sensor 1" needs to be replaced. Where is Bank 1 Sensor 1?


P0130 Oxygen Sensor Circuit Malfunction - Bank 1 Sensor 1.
P0131 Oxygen Sensor Circuit Low Voltage - Bank 1 Sensor 1.
P0132 Oxygen Sensor Circuit High Voltage - Bank 1 Sensor 1.
P0133 Oxygen Sensor Circuit Slow Response - Bank 1 Sensor 1.
P0134 Oxygen Sensor Circuit No Activity detected - Bank 1 Sensor 1.
P0135 Oxygen Sensor Heater Circuit Malfunction - Bank 1 Sensor 1


Jun 23, 2010 | 2003 Kia Optima

1 Answer

Had local part store pull code. O2S heater CKT malfunction 1/1


This fault indicates a problem in the oxygen sensor heater circuit, bank 1 sensor 1.
Your vehicle is equiped with four oxygen sensors total. Two upstream and two after the catalytic conveter that monitor emissions and converter effeciency. The front sensor on the left (drivers side) bank requires replacement. The heaters are used to bring the sensor up to operating temperature sooner.

Feb 25, 2010 | 2002 Toyota Tundra

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