Car randomly goes into limp mode and shows this code. I can erase the code and it runs and drives great. It's happened 7 times in the past week. It goes into the dealer in a few days unless I can figure it out. Any help is appreciated. It's a 09.

 

I have replaced the pedal assembly and throttle body in the past few months.

 

Have you cleaned the throttle body? Inspected the wires at the throttle body

Symptoms of a P2135 code can range from stalling when you come to a stop, total lack of power, no acceleration, sudden loss of power at cruise speeds or stuck throttle at current rpm. Additionally, the check engine light will illuminate and the code will be set. Potential Causes of P2135 DTC It's been my experience that the wiring connector or "pig tail" on the throttle body gives problems in the form of a poor connection.The female terminals on the pigtail corrode or pull out of the connector. Possible bare wire on pigtail shorting to ground. The top cover on the throttle body distorted preventing the gears from turning properly. The electronic throttle body is faulty. The accelerator pedal sensor or its wiring failed. The engine management computer has failed. The TPS sensors were not correlating for a few seconds and the computer needs to be cycled through its relearn phase to restore active response to the throttle body, or the computer needs reprogramming at the dealer.

Read more at: https://www.obd-codes.com/p2135
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Probably a chafed wire or bad connector. Especially the bundle of wires next to the EVAP purge valve bracket.