Question about 1998 Pontiac Grand Am

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Code po141 heater circut sensor/where do i find this sensor? where is bank 1

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Code is not for heater circuit,
code p0141=O2 Sensor Heater Circuit Bank 1 Sensor 2
that means its an oxygen sensor located in bank 1 which is the drivers side,sensor 2 means its the downstream sensor after the convertor

Posted on Nov 24, 2009

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PO141


Trouble Code: P0141

HO2S-21 (Bank 1 Sensor 1) Heater Circuit Malfunction

Possible Causes:


HO2S heater control circuit is open or shorted to ground.
HO2S heater power circuit open between the heater and PCM.HO2S heater is damaged or has failed.PCM has failed (it controls the heater with a duty cycle signal).The sensor is on the passenger side,that is cylinder number one.

Jan 27, 2013 | 2002 Mazda Millenia

1 Answer

Code P0141 and P0155


PO141 is an 02 sensor sensor heater circuit malfunction (bank 1 sensor 2)

PO155 is the same for bank 2 sensor 1.
Depending on your mileage, and no wiring problems, you will need to replace the oxygen sensors and clear the codes.

I hope this helps.

Aug 24, 2011 | 2004 Mitsubishi Galant

2 Answers

Check engine light. code po141 codepo122


po141, may be a bad o2 sensor, rear sensor after converter. the po 141 is low voltage to tps, try replacing the oyxgen sensor first and then reset the codes and drive if the po141 comes back then replace the tps,

Apr 15, 2010 | 1998 Chevrolet S-10 Pickup

2 Answers

Emission code po141 what is the problem thanks


P0141 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 2

HI, this code if for a fouled O2 sensor that you will need to replace asap.

Jun 01, 2009 | 2003 Honda Accord

2 Answers

Sears did a computer eval on our car and gave us codes only


P0135--OXY SENSOR HEATER CIRCUIT(bank 1 sensor 1)
P0141--OXY SENSOR HEATER CIRCUIT(bank 1 sensor 2)
P0155--HEATED OXY SENSOR HEATER CIRCUIT(bank 2 sensor 1)
P0161--HEATED OXY SENSOR HEATER CIRCUIT(bank 2 sensor 2)
P01132--LACK OF HO2S11 SWITCH--SENSOR INDICATES RICH
P01152--LACK OF HO2S21 SWITCH--SENSOR INDICATES RICH

Here are the code definitions.hope it helps.

Nov 15, 2008 | 1997 Mercury Cougar XR7

1 Answer

Trouble codes


Hi Sandra!
The trouble codes listed are defined as:

P0141 Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

P0300 Random/Multiple Cylinder Misfire Detected

P0331 Knock Sensor 2 Circuit Range/Performance (Bank 2)

PO300 & PO331 are possibly symptomatic of issues caused by PO141, which would have a direct influence on the air/fuel mxture... which could cause missing and knocking.

So the first thing I would try is replacing the Bank 2 Oxygen Sensor, after making sure the wiring and connections to that sensor are in good shape.

Does the engine show any physical issues such as loosing coolant, smoking exhaust, overheating? A blown or leaking head gasket on the #2 bank could also present these (among other)
codes.

Good luck and let me know how it goes!

WB

Jun 09, 2008 | 1997 Pontiac Grand Am

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