hidden ground locations

[xwrench]

i have a '96 6.5td that sets codes, usually P0228 and P0335, when i drive on rough roads or hit bumps. i am certain that this is a flaky connection but i need some more ideas where to look. i have taken apart, cleaned and tightened all the grounds i can find; the one behind the ps head, the one to the firewall, etc. any more places i can look for this would be a big help. thanks :confused:

[BigMikeO]

Just today I removed the wheel well on the pasangers side of my 95 and there was a thin flat ground that fell apart when I touched it. There appears to be the stubs of 2 ground wires attached there but I only saw one. From the amount of effort it takes to get the wheel well off I would leave that for your last attempt.

[moondoggie]

Good Day!

You might want to look at DTC 35 - Help! (http://forum.thedieselpage.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=1;t=004386#000000). My truck's a 95, but this still might help.

Blessings!

Brian Johnson, #5044