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My check engine light came on, I took it to Auto Zone to get the OEM Code - it came back "P0121" Throttle Position Sensor - but they told me my car, a 07 Pontiac G5 does not come with that part. Any idea what it may be?
lol i wouldn't trust the auto zone people for parts information. Most of their mechanical knowledge comes from a computer. You can do the same thing on their website. i'm pretty sure that your G5 comes with a TPS sensor unless GM has made some radical changes lol. If your obd2 code reader came back with a TPS sensor error than yes you have one. The people at AZ may have meant they don't carry it.
The thread is ten years old.
The person you responded to was a guest so he will not be aware of your response.
There was so little information given there is no way of knowing whether it is even the same issue that was listed ten years ago.