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Truck bogging down

Danny Kirk
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Danny Kirk New Member

Danny Kirk

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03 Silverado with 5.3, just replaced the tranny and got the following codes. P0120 Throttle pedal Switch A ; P0220 Throttle Pedal Switch B;  P1516 Tac Module ; P2135 Throttle pedal position Sensor switch a/B correlation.

I replaced the throttle body position sensor-complete with new butterfly valve, an new gas pedal sensor-complete with pedal.  

Do I need to have the computer relearn these parts somehow?  IDK!

And it is still bogging down but im not getting the codes again though.  Is the replacement of the 8 pin connection to the throttle body sensor next?  or am I missing something

The truck moves off and shifts fine, but all of a sudden it goes into intermittent limp home mode type of running.  Then it will run fine for a few minutes and then bog down again.

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