Question about 2006 Chevrolet Aveo

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Code P2158/ Throttle Body

I have a 2006 Aveo. I recently had it in the shop due to a check engine light, they told me it was a gummed up throttle body, so they cleaned it and sent it on my way. Now my check engine light periodically comes on, maybe for a day or so at a time, and then off again for another day or so. When I scan it the code P2158 once again comes up. Do I need to replace the sensor, or the entire throttle body?

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  • ellzedell Jun 03, 2010

    Scratch that, it's actually code P2135. Not sure where I got 2158. Duh.

  • Anonymous Mar 29, 2014

    check engine light on it says p0507

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  • Master
  • 1,857 Answers

You most likley need to replace the whole unit. But without diagnosing it its all a guess. Look at it this way. You would of already spent a couple hundred at least to place one small part. If your wrong your now going to have to spend about $500 for the whole unit plus anothe diag possibly.

Posted on Jun 03, 2010

  • 2 more comments 
  • Susan Price Jun 03, 2010

    this is a throttle position correlation issue. You need to see data using a data scanner to proceed. Without knowing whats going on inside the PCM you wont be able to to know if you have a sensor issue or a computer issue or a loose wire connector somewhere.

  • Joe Waclaw
    Joe Waclaw Oct 27, 2014

    The throttle body on an Aveo is a simple item. Heck you could make one in metal shop for less than new. There is nothing that could go wrong a good cleaning (taking it actually off) wont fix. You could replace the solenoid (IAC) AVOID oem, the quality is actually less, They can be had new on Ebay for 10-2o bucks, Again-Avoid OEM.

  • Joe Waclaw
    Joe Waclaw Oct 27, 2014

    Further more, this throttle body is a simple as they come. Stone age simple as cars go. Think 1980 simple. Its a cylinder with a throttle plate just like a big ol' carburetor only simpler. It just moves air. The IAC, is a simple solenoid. Open close. Open close. It however can suck oil into itself if you have a clogged up PCV. These can be cleaned with TB cleaner as well. HEck if you are a cheapskate like I am, remove the two screws on your IAC and generously spay the thing in electrical cleaner like CRC, and install. Disconnect the battery before you remove it make sure the plunger is pushed in before you reinstall.

  • Joe Waclaw
    Joe Waclaw Oct 27, 2014

    Oh yeah. change your gas station. When it comes to cars cheap gas is bad gas. . Burn a tank or two of PREMIUM. The detergents in there should do the trick.

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michael_cass_216.jpgmichael_cass_217.jpg

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