2010 4x4 F150 Lariat 5.4 L, have been working on throttle response problems off and on for a few months. Initially got p0404 codes, and replaced the accel pedal assembly, now graduated to p2135 code, and stall at idle after a highway trip. Wondering if this may be a issue with aftermarket air filter causing misread errors on sensors. Had it to the dealer, with out any real remedy.

 

Identifix is telling me throttle body is in need of replacement or TPS sensor which I'm not sure if it can be replaced separately. There were a few hits with issues with the connector.. Hope this helps??

 

That is what I feared. Thanks for the lookup