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P2122 Code, Accelerator or Throttle Body?
Hello all, I haven't posted here in a very long while! Was hoping you all could help me on this one.
Yesterday, I'm at work in a meeting and I get a panicked text message from my wife. She was going to lunch in her 2011 Impala (about 65,000 miles on it), and she got a couple of messages that popped up on her instrumentation panel. First one was "Engine Power Is Reduced," the next one was "Service Traction Control." She got another message, but she was freaking out so much she neglected to get the third one. She said that it was acting kind of sluggish, but it was still drivable. I tell her to park the car, and I'll come get her.
An hour later, I get another message that says that when she put the key in and started the car back up, the messages weren't there any longer, but the check engine light was now illuminated. I go to her job, and follow her home as she's driving (I have a stick that she can't drive). She tells me that other than the check engine light, all of the other messages were gone and that she has no problems driving all the way home.
When we get home, I stick my cheap OBD-II scanner on the car, and I get a code P2122. Now, I'm not sure which OBD code website to believe...one says it's the accelerator pedal, another says it's the throttle body sensor. I purchase both a throttle body (cheaper from where I could get one than getting just the sensor) AND a new accelerator.
The throttle body is the AC Delco one that comes with the sensor, and the accelerator I got from Advance. Everyone I've asked about the parts say they're both plug and play, but I've seen instances where that isn't the case online. My question is this:
Will I have to do a relearn on the ECM? If so, what is the 100% correct way procedure to do this? I've seen videos out there where people are letting their cars stay in ignition but not running for like 10 minutes - which boggles me, because I'd believe the battery would be dead, right? I definitely don't want to deadline the car...
I haven't taken anything off....yet...