buddy
Active Member
Make sure you check the codes, should have a timing code, that has to be cleared before relearning TDCO.
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IP timing OBD II
- Thread starter CUCV
- Start date
CUCV
Member
Well, I did the timing procedure. It really is kinda strange how the numbers "jump around" at any rate, it went from -2.20 to 1.63 after tons of KOKO's. It was at -1.94 for a while but then it reverted to the -1.63. Seeing as how I can't really say how I got it to -1.94 in the 1st place, I'll think I'll stick with the -1.63 for a while. I have plenty of other things that need attention on the rig.
Thanks to all who helped me out on this- I never could have done it without this forum!!
Thanks to all who helped me out on this- I never could have done it without this forum!!
ak diesel driver
6.5 driver
to get it to stop where you want turn the truck off.
ak diesel driver
6.5 driver
Also you don't need to do KOKO with Car Code. KOKO is only when you can't set with a scan tool.
CUCV
Member
When it hit -1.94 I turned truck off like qwomack said to. When I started it up it still showed -1.94. After another shut down (without a TDCO learn) when I started it back up it was sitting at -1.63.
Not sure if that helps at all.
Oh- and I never moved the pump. It went that entire range without mechanical adjustment.
Not sure if that helps at all.
Oh- and I never moved the pump. It went that entire range without mechanical adjustment.
ak diesel driver
6.5 driver
Sometimes if your not fast it will set to the next value as your shutting down
buddy
Active Member
turning the truck off does not seem like a sound practice to end a timing procedure.
The same TDCO flucuation will happen after the TDCO relearn procedure in my OBD1 truck if I do a couple things. one is if I do not perform the timeset before each TDCO learn, and two is if I exit the TDCO learn procedure early myself. If I do the timeset or let TDCO run its course it never seems to flucuate afterwards. I have done it about 80 times on my truck.
The same TDCO flucuation will happen after the TDCO relearn procedure in my OBD1 truck if I do a couple things. one is if I do not perform the timeset before each TDCO learn, and two is if I exit the TDCO learn procedure early myself. If I do the timeset or let TDCO run its course it never seems to flucuate afterwards. I have done it about 80 times on my truck.