Sensor Troubles - ModernCamaro.com - 5th Generation Camaro Enthusiasts
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post #1 of 20 Old 01-22-2015, 05:33 AM Thread Starter
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Sensor Troubles

Bought my 2011 SS the end of September. Yes, she was used had 39,000 on here when I got her. The dealership charged me around $1800.00 to "check her out" since she was a used vehicle. However, in December my engine light came on, so I took her to have her codes read. Came back Mass air flow sensor or something to do with the fuel line. Brought her home, hubby checked the box where the air filter resides and low and behold below the air filter is cat food and some sort of nest. Now I ask you, do you really think they really took a good look at her?

About the second week in January, I get into the car to leave for work when I crank it the engine feels like it is going to bounce clean out of the body. Its lurching and shaking;I try to drive it wont go over 18 mph. Get her in the shop and the Throttle position sensor has gone out and has to be replaced (thank goodness for extended warranty).

Now yesterday the engine light comes back on. Have the codes read (P171 and 172 bank 1 and bank 2) and now its the O2 sensors. Going back in shop Saturday to have those replaced.

Any thoughts what I should do at this point?

Last edited by wolvskiss; 01-22-2015 at 06:04 AM.
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post #2 of 20 Old 01-22-2015, 07:56 AM
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Both banks setting lean codes, doubt it will be the O2 sensors.. Running lean could be a leak in intake or bad fuel or an air sensor... O2 sensors don't both go out at the same time.. or could be more wiring chewed up from the nest. We get a lot of that this time of year with mice trying to find something warm, then they build a nest using wiring.

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post #3 of 20 Old 01-22-2015, 08:15 AM Thread Starter
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Thanks that is good to know. Guess we will know more Saturday.
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post #4 of 20 Old 01-22-2015, 08:42 AM
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Quote:
Originally Posted by kc0cmj View Post
Both banks setting lean codes, doubt it will be the O2 sensors.. Running lean could be a leak in intake or bad fuel or an air sensor... O2 sensors don't both go out at the same time.. or could be more wiring chewed up from the nest. We get a lot of that this time of year with mice trying to find something warm, then they build a nest using wiring.
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post #5 of 20 Old 01-22-2015, 09:44 AM
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Thank you.. I don't post a lot, but when I do I like to know what I am talking about. lol

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post #6 of 20 Old 01-22-2015, 12:01 PM Thread Starter
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I'm hoping its not a leak in the intake; however, that might explain some of the hesitation I'm getting and the strange noise I'm getting at the time of acceleration.

I'm running premium fuel not sure what the person before me was running. Bet it wasn't premium.

Getting a bit worried about it now.
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post #7 of 20 Old 01-22-2015, 12:20 PM
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Intake would be part of the powertrain warranty which is 5 years or 100,000 miles, any gasket on the engine is like that. Sensors are not under powertrain warranty.

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post #8 of 20 Old 01-22-2015, 01:35 PM Thread Starter
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I purchased an extended warranty when I purchased the car that covers just about the entire car. The sensors are covered under it. I'm going to have them check out the other things you mentioned. I appreciate the advice.
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post #9 of 20 Old 01-26-2015, 05:11 PM
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this is why you buy new and not a car 40 thousand miles on it. it was only a matter of time before something went wrong. you have no idea on how the last owner took care of the car. good luck
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post #10 of 20 Old 01-26-2015, 05:18 PM
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while I do the new car thing ... there are times that i wonder about going the used route (for example a 2SS going for only 25/6K with 13K miles at our local dealer) ... but on a car like this, I would always wonder what the person before me did

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