THREW SOME CODES NEED HELP

[TheGunny77]

SO I TOOK OFF ONTO THE HIGHWAY AND LOST MY THROTTLE LOOKED AT THE CODES AND HAD
-P0672 GLOW PLUG #2 CIRCUIT FAILURE
-P2138 THROTTLE/PEDEL POSITION/SWITCH D/E VOLTAGE CORRELATION
-P2140 THROTTLE/PEDEL POSITION/SWITCH E/F VOLTAGE CORRELATION

CAN ANYONE HELP OUT HERE I KEEP HEARING DIFFERENT THINGS, DO I JUST NEED A NEW PEDEL ASSEMBLY WITH THE SENSOR OR IS IT MORE THAN THAT?

THANKS
THE GUNNY