1997 Pontiac Grand Am Logo
Posted on Jul 13, 2009
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O2 sensor location 1997 pontiac grand am 2.4 4 cyl auto trans

I 'm reading trouble code... P0 134, o2 sensor, No Activity, bank 1 sensor 1....are there two sensors, one at the exhaust manifold and one by the catalytic converter? I see what appears to be one at the exhaust manifold right before the exhaust pipe connection.
Also reading....P0 171, system to lean, bank 1...I'm hoping this will clear when the o2 sensor is replaced.

  • Anonymous May 11, 2010

    the sensor you will need to replace is the one by the manifold. and more than likely that lean code is from the bad o2

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  • Posted on Jul 13, 2009
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Joined: May 21, 2009
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BANK 1 SENSOR 1 IS THE ONE IN THE EXHAUST MANIFOLD. BANK 2 SENSOR 2 IS BELOW THE CATALYTIC CONVERTER.

P0171 SHOULD GO AWAY WITH A GOOD O2 SENSOR BUT DO CHECK FOR VACUUM LEAKS TO BE SURE. 3.1/3.4L ENGINES HAVE A BAD DESIGN INTAKE MANIFOLD GASKET, THE LEAK OIL, COOLANT, AND AIR.

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2001 pontiac grand prix 3.8. I replaced bank 1 sensor 2 O2 sensor fixed my code. Put in fuel injection cleaner drove about 100 miles, and bam got code P0172 code system to rich never had that code could...

Does it give a misfire or just, system to rich? If it gives you a cylinder number trying switching a injector, if the code jumps to cyl where you swapped, replace injector.
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How to find O2 sensor ?

Check connection to sensor, sounds like you will probley need a new O2 sensor......happens alot
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What does code PO 140 mean

Yes, PO140: O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2
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Trouble code p0134, p0135 p0053 p0030

P0134 - O2 Sensor Circuit No Activity Detected Sensor 1 Bank 1
P0135 - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1
P0053 - O2 Heater Resistance Bank 1 Sensor 1
P0030 - O2 Heater Control Circuit Bank 1 Sensor 1
You need to replace the O2 Sensor Bank 1 Sensor 1
Carquest can help you get the correct part and help you locate it.
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Reccieved P0141, P0147, P0340 as emission diagnostic trouble codes. What do these mean?

P0141....O2 Sensor Heater Circuit (Bank 1 Sensor 2)

P0142....O2 Sensor Circuit Malfunction (Bank 1 Sensor 3)

P0143....O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)

P0144....O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)

P0145....O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)

P0146....O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)

P0147....O2 Sensor Heater Circuit (Bank 1 Sensor 3)

P0340....Camshaft Position Sensor 'A' Circuit (Bank 1 or Single Sensor)

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P134, p0141, po300, po130 and po135. 2005 Sunfire.

Given that most of the trouble codes are for the O2 sensor, I think I would change it. The multiple misfires could be because of improper fuel/air mixture caused by a bad sensor. Disconnect the negative(-) battery terminal then change the sensor. Disconnecting the negative(-) should reset the computer and allow the fuel/air mixture to return to default allowing the engine to start.
P0130 - O2 Sensor Circuit Malfunction (Bank 1 Sensor 1)
P0134 - O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
P0135 - O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
P0141 - O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
P0300 - Random/Multiple Cylinder Misfire Detected
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How to clean O2 sensor on a 2007 Pontiac G6?

O2 sensor are located before and after Catalytic Converter ( exhaust system of your car). If you car's engine is 4 cyl you have 2 O2 sensors and if you car's engine is 6 cyl then you have 4 O2 sensors ( for each bank, 2 for left bank and 2 for right bank). Hope it helps and comment if you need more advice. Please don't forget to rate the answer it helps with my ratings, thanks!
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Oxygen Sensors out on Pontiac Grand Am 2003 V6

Your car is equipped with a diagnostic system called OBD II. You can purchase a code reader and use it to find which O2 sensor is causing the problem. You probably have 4 sensors. 2 in front of the converter and 2 behind. The code reader will indicate something like "SEN 1 BANK 1." This means O2 sensor in front of the cat. on the side of the engine that contains cylinder 1. You may see "SEN 2 BANK 1" "SEN 1 BANCK 2" "SEN 2 BANK 2" Bank 2 indicates oppisite side of No.1 cylinder. Hope this helps
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Trouble codes

P0108 - Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage,
Possiable MAP sensor defective

P0134 - Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 1 Sensor 1
P0141 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 2 , I recommend you replace both O2 sensors, bank 1 and bank 2
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