Code P0336 Crankshaft sensor performance.

[MountainMan1]

Been setting this code on occasion lately. The first times it only happened while WOT and no deterioration of performance noted. However a few weeks later while at 65 MPH the engine skipped, perhaps de-fueled, and set the

P0336 code. About a half hour later it did the same but ran so terrible I had to pull off the highway. Whenever I touched the throttle even in neutral the engine rattled like crazy with plenty of gray smoke. After shutting down to read what code was set I cleared it with the Smarty and restarted and it ran as good as before!



I was running the Smarty version 411AD411D, sw 9, and wild torque management, (not happy with REVO yet). The TST CR49 was on 2/0 and everything else off, no timing, standard turbo, although I have twins, etc.



I later changed the TST to 0/0 and haven't seen the code yet but I feel I haven't driven long enough, 200 miles, to make a determination, however I am thinking the TST could be the culprit.



Do you think I should at least have a new sensor on hand and wait or replace now?



I tow commercially with Smarty using V411AD211D sw 3 and mild TM. Sometimes TST at 1/0 or 2/0.



Just a bit over 400,000 miles now.



Peter

 

[Cummins-threw]

I have just installed tst r49 on my 2003 ho. And have camshaft sensor problems.

 

[BGlidewell]

is there a tap on your CPS? Mine went bad after the alarm system was installed. They tapped in the CPS for the auto-start and either it fouled the CPS or just went bad on its own. Since it was tapped the dealer refused to warranty it at 3k miles... ~$70 for the replacement CPS.

 

[MountainMan1]

is there a tap on your CPS? Mine went bad after the alarm system was installed. They tapped in the CPS for the auto-start and either it fouled the CPS or just went bad on its own. Since it was tapped the dealer refused to warranty it at 3k miles... ~$70 for the replacement CPS.

I think you mean the Crank position sensor, CPS is actually the camshaft sensor. The only thing tapped is the TST.



Today I ran for 425 miles at highways speeds with the Smarty loaded at mild TQ and SW 2 and the TST off... no codes! The last time before this when I drove a couple hundred miles I had the TST on 2/0 for only a short burst or 2and the code did show up. I am thinking TST even more. Next I need to accelerate hard as it is set now.



Thanks for the suggestions and comments from both you above.



Peter