Buck, Jerk, And knocking

Droolinforparts

New member
Joined
Feb 2, 2008
Messages
13
ok guy i havent posted in a long time and everyone left the diesel garage, but any way when i run my truck up over like 2500 rpm and then back out of it the next time i start to accelerate no matter if i accelerate hard or easy the truck starts to buck, and knock....it sound like a fuel knock to me but the question is why?.....i have noticed oil in the valley but i dont know where its coming from i think my turbo is on its way out but not positive i havent checked yet, i hooked up my AE and pulled a bunch of codes:
Hybrid electronic cluster:
U1073- SCP (J1850) invalid or missing data for engine coolant
U1226- SCP (J1850) communication bus fault
U1027- SCP (J1850) invalid or missing data for engine RPM
Enhanced powertrain CAN:
P0603- internal control module keep alive memory (KAM) error
Then i ran a key on engine running self test and got a:
P1464- A/C demand out of self test range, i dont think this has anything to do with my buck and jerk and knock.

the truck has recently started to puke again, the heads are studded, the egr is deleted (but not shut off with sct) a 58V FICM from innovative, and i have been running the extreme street tune. thanks guys sorry for the long post
 
Run like that stock? Can you make it happen again? If so data log it with AE.
 
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