Question about 1999 Chevrolet Cavalier

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Engine code e0141,po507,po141,milon - 1999 Chevrolet Cavalier

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Posted on Jan 02, 2017

03chevy
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SOURCE: check engine light. code po141 codepo122

P0122 Throttle Position Sensor/Switch A Circuit Low Input
P0141 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
these 2 sensors are easy to change after you change them rescan the computer and erase the codes.

Posted on Apr 15, 2010

johnjohn2
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SOURCE: 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,

Posted on Apr 15, 2010

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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.

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How many O2 sensors on a 1997 Lexus ES 300?


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1 Answer

Code po507


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Fault codes, p0102,p0122,po507


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Mar 20, 2009 | 1999 Chevrolet Malibu

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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