Question about 2002 Toyota MR2 Spyder

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P0141 code change 2 of 3 o2 sensors and code still comes bk is it the o2 after the cat???????????

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  • Anonymous Feb 27, 2009

    1999 Toyota 4 runner 2 wheel drive v-6 has po141 code. Replaced oxygen sensor 2 in bank 1 (in front of cathletic converter) 2 weeks ago now light is on again. code is po141 again. Help!!!!

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Bank 1 sensor 2 that means the side where cylinder #1 is the second sensor so it is by the cat or after

Posted on Dec 10, 2008

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O2 Sensor Bank 1 Sensor 2 location


standing in front of the vehicle looking at the engine bank 1 sensor 2 is the sensor after the cat converter on the bank on your left
bank one is the left cat ---bank 2 is the right cat. Sensor 1 is the one before the cat and sensor 2 is the one after the cat on either side

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Po141 keeps coming on even though the part was changes and the code cleared from computer, why?


The P0141 code refers to your o2 sensor heater circuit. while many times replacement of the o2 sensor can solve this problem you possibly have a short or open in your o2 sensor heater circuit. Also was the proper o2 sensor changed p0141 is the bank 1 number 2 sensor. Bank 1 refers to the side of your engine where the #1 cylinder is located sensor 2 should be the second sensor on that side depending on how many sensors you vehicle has. hope this helps

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1996 honda accord o2 sensor versus Catalytic converter codes p0135 and p0141


The fault code P0135 means O2 Sensor Heater Circuit (Bank 1 Sensor 1)
The code P0141 means O2 Sensor Heater Circuit (Bank 1 Sensor 2)

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1 Answer

Pontiac Aztek 2001 - 3.4l (non-GT); Codes: P0135, P0141, P0420 all O2 + Converter. Ideas on problem?


P0135 bank 1 sensor 1 open or short in wires,bad connections,bad sensor ,or bad ecm. P0141 bank 1 sensor 2 same diag as P0135. P0420 cat below threshold open or short, or faulty Ho2s sensors.you may have several problems. start with sensors circuit if good change sensors if not trace to ecm if reading not right replace ecm if all good replace sensors clear codes retest drive two drive cycles for cat to clear tests. then with no dtcs present test fuel pressure , injectors,then ignition system ,timing valves ,map,maf sensors,throttle sensor,crank sensor cam sensor, compression.

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1 Answer

The code that comes up is p0141. the book says that it is a O2 sensor heater malfunction. But the book does not show me where the O2 sensor heater is located. I'm confused. I have located the 02 sensors. 4...


P0141 is O2 Heater Circuit (Bank 1, Sensor 2) It will be the sensor AFTER the cat on the side that has #1 cylinder. On your car it's the PASSENGER side.

Apr 18, 2011 | 1999 Dodge Intrepid

2 Answers

I am getting a p0141 code, where is this sensor located


P0141-o2 sensor heater circuit malfunction [bank 1 sensor 2 ]this is the o2 sensor after the cat converter need to check the wiring[harness] and connections for frayed ,damaged or partial connection or o2 sensor failure and needs to be replaced

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Check Engine Light


P1133 HO2S Insufficient Switching - Read Our Article On Oxygen Sensor Codes For Help With This Pontiac Trouble Code (check your oxygen sensor also called O2 sensor)

All the codes you have listed come back and refer to the oxygen sensor. I would say that it is your problem. you vehicle may have 2

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1998 honda accord check engine light on code p0141


SECONDARY HEATED O2 SENSOR HEATER CIRCUIT FAULT SENSOR 2.

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