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Vehicle is in limp mode, and will not come out. I'm completely lost
p0123 p1122 p1121 p0223 p2321 I have these codes.

Vehicle: 2002 nissan sentra SE-R Spec V

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has the car been in an accident?

all the codes except P2321 (not a valid code for your car) are related to the throttle body. If there is no wiring issue replace the throttle body.

and do an idle air volume learning procedure (see link below)

2002-2011 Nissan Sentra Idle Air Volume Learning Procedure

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