new codes upon removal of injection pump

[moolie]

had the pump taken off to fix the housing and i have 2 new codes i haven't seen nor heard much about





2127 low voltage at throttle validation switch



and 2122 low voltage at app sensor



clear them one needs to be cycled what is that like 3 starts without condition or something like that





and i'm wondering what this could be from exactly any ideas?

 

[RGramlow]

Does the pickup start and drive okay? I would check the wires that plug into your apps. To find the apps just follow the cable that is hooked to your accelerator peddal, it will run through the firewall, if your pickup is a 2005 it is under the dash and your go peddal and apps is all one part. By the way apps means accelerator peddal position sensor. I believe the throttle validation switch should be part of the apps.