P0405-egr Position Sensor Circuit Low I just started my truck without letting the codes clear and this is the only one that showed. I had an instance where my truck went into regen after the egr/dpf delete (l pluged the DP sensor hoses). After I unplugged them and let the regen cycle finish, I havn't had a repeat of the CAT FULL if I don't clear codes and I don't get any DPF codes now. I wonder if letting it complete a regen cycle with a zero pressure difference reset the counter so the truck beleives the filter is perfectly clean. Don't know for sure, its all Pandora's box to me.:thumbsup
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