could the p0216 trip up my apps and throw the p0121? It did this the other day when i set the cruise control. that is the only time i get the check engine for the 121 code is when i'll put it on cruise control and that just started happening recently.

 

I am pretty sure they are separate
p0121 is an APPS or TPS. When you are ready for a VP44 or TPS I can hook you up and save you $$