Question about 2001 Oldsmobile Alero

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2002 Alero check Engine light Codes P0132, P0137

Light has been on for about 2 years, Replaced both O2 sensors twice. Catalitic converter and Muffler twice. Most of the driving is highway driving. if prolonged city driving the light will go out for a while, how ever it appears that the gas milage goes down. I am at looking for solutions. my mechanic says that every thing checks out while idling in the shop and the codes indicate it is the O2 sensor or the catalitic converter. It appears that he want to keep replacing parts until we get the right one

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  • gmanifold Jan 16, 2009

    I forgot to mention 3.4 L engine

  • gmanifold Jan 17, 2009

    the the last few times I have had the codes read the following codes have shown up P1189 , P0132, P0137. the one shown most often has been P0132

  • Wolfen1176 May 11, 2010

    what code is it storing?

  • Anonymous Mar 17, 2014




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Code P0132 is O2 sensor voltage high bank1 sensor 1, P0137 is O2 sensor voltage low bank 1 sensor 2, P1189 indicates a fuel control problem bank 1. It could be either the O2 sensors or a convertor. Could also be intake manifold gaskets. GM had a lot of problems with the lower intake gaskets leaking on the 3.1 and 3.4 engines that was linked to their Dexcool coolant. In fact they just lost a class action lawsuit about it. check with the dealer and see if the intake problem has been taken care of. Hope this helps.

Posted on Jan 18, 2009


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o2 sensors are after the cat converter
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Exact location of downstream O2 sensor.

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and p1460 unfortunately I don't have handy..... But REALLY sounds like you need to replace the Oxygen sensors in front of the catalitic converters... There is dual exhaust coming from the engine to one muffler in that truck, there are a total of 2 converters and 4 O2 sensors (1 in front of converter and 1 behind it on both of the pipes) Front ones are definetely shot!!!! Be prepared to put the rear ones in shortly after!!!!! they are about $80 canadian each at the jobbers and probably more at the dealer!!!!!

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