7.3 No acceleratator pedal respons code:P0221

[csaba]

2002 F-250 7.3 no accelerating just idling. I run the ETC PID test and the switch is turn ON and OFF and a voltage is normal changes. I got the same PCM and replace it but nothing changed. My new PCM is bad too or an other problem?

[huj]

if you have scanner key on engine off accelerator not pressed ivs should read off if reads on bad pedal if no if you press accelerator should switch between 0.4 and 1.6 v if does bad pcm if don't press accelerator fully and observe ivs if switches at any travel check resistance at ivsless than 5 ohmscheck + at the ivs if open or more than 5 ohms replace pedal 2 different ones fix pedal is cheap adjustable is expensive if need more steps how to troubleshot let me know

[NoRalPh]

Take a look at this thread...

99-03 OD wire fix

And this .pdf->

https://b7445ba3-a-62cb3a1a-s-sites....attredirects=0