Trouble Code PO121
#1
Trouble Code PO121
Check engine light comes on and stays on for a day or two, then goes off. Showing trouble code PO121 (throttle position sensor). When the light is on, remote start won't work. Help, mudslide
#2
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Could you please provide additional information? Vehicle model and year? How long has this been occurring? Is this a recent issue or a recurring?
Any additional information you can provide may help.
Louis
GM Customer Service
Could you please provide additional information? Vehicle model and year? How long has this been occurring? Is this a recent issue or a recurring?
Any additional information you can provide may help.
Louis
GM Customer Service
#4
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Join Date: Mar 2010
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I have searched my resources, however, have been unable to find any known throttle position sensor or remote start issues with 2007 Avalanche vehicles. I encourage you to take the vehicle in for an inspection. A certified technician should be able to offer a diagnosis.
If you have any additional questions, please feel free to contact me.
Louis
GM Customer Service
I have searched my resources, however, have been unable to find any known throttle position sensor or remote start issues with 2007 Avalanche vehicles. I encourage you to take the vehicle in for an inspection. A certified technician should be able to offer a diagnosis.
If you have any additional questions, please feel free to contact me.
Louis
GM Customer Service
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