TexMexCowboy

help my truck is realy going crazy. i turned it on and it mad a wierd noise. then i shut it off and it then it came back on with no problems. I checked for codes and it gave me 4 codes which are:

P0123
P1596
P1694
P1687

phox_mulder

Only ones I found are:
P0123 Accelerator Pedal Position Sensor Signal Voltage Too High
P1694 No CCD Messages Received From ECM

If I had to guess, I'd say your APPS.


phox

TexMexCowboy

what should I do?

crobtex

Look in the "Tech Facts" above. The is one procedure for "re-setting" the APPS and one of doing the "Recal".

TexMexCowboy

cool i will do that and then we will see what happens

TexMexCowboy

ok reset the APPS but it is still showing the P0123 code but the others are gone

crobtex

You may have to do the voltage adjust. Some are so far out of range they won't adjust, but it's cheaper to try than buy a new APPS assembly.

TexMexCowboy

kool ill try that here pretty soon.