P0605?
KOEO comes up with a P0605 within seconds. Clear it, run test again, comes right back up. It had this when I first got the truck last year, but the cel does not come on, and truck runs ok. (little sluggish to build boost) P.O. installed a banks pack, so I pulled the pcm to check for a chip, looks like pcm was replaced (possibly used pcm), and no chip or anything.
What exactly is this code? scanner says pcm internal ram error, says to erase and run test again, if it comes back replace pcm.
2001 f350, I am using my snap-on verdict to run tests.
p.s the reason I had the scanner hooked up to begin with was to try and reprogram the speedo for the larger tires. I thought it was done through the pcm but can not find anything, do I have to change the gear on the speed sensor?
any info is appreciated.
maybe what he has there will lead you to the answer on the speedo with the Snap On scanner.
edit,
The last post on this thread has 3 good links to your po605 error.
https://www.ford-trucks.com/forums/1...uty-7-3-a.html









