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Code 122 is for a low signal coming from the TPS. Since you have replaced the sensor, the problem may be in the wiring harness. The signal would need to be checked. Code 405 is also a low signal coming from the EGR valve. Same thing, you need to check the signal with a scanner or volt meter. And when the computer is not getting an acceptable reading from the TPS it uses a known good signal to bypass the sensor which will cause the idle speed and shifting problems. The computer does not know when you open the throttle.
on your dash is the button to check your milage. push it in and hold it down until your codes come up. some of the numbers it will go through will only be ecm numbers
ok,white screen is LCDproblum or flex conecting pro,error 122 is ur lens barrel stuckup or mechanical gears problum this is repareable u try ur local repairer
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