Ok, here's the situation, My truck went into limp mode last thursday, so I went ahead and pulled the codes. I got P0236 and P0237. I went out and bought a new MAP sensor from Cummins Crosspoint in Indianapolis, and installed that. Well, I still had intermittent dead pedal, but when I'd do the APPS reset, it would go away for a day or so. I had to go to Cincinnati this weekend, but I ordered a brand new APPS sensor online. Got back today, and got it in, adjusted it, and now the truck's permanently stuck in limp mode, and P0236 and 0237 will not clear, with my scanner/codereader. I've reset the APPS about three times tonight, tried it with my Comp on, and off, and I get the same results. No boost, feels like it's naturally aspirated, and not acceptable. I've got to drive it to Cincinnati next weekend again, and I've got about 3 hours this week that I'll be able to work on it. Any ideas??????

 

Both of those codes are boost related. Check for boost leaks, check the charger, and check all connections from the new apps sensor.

 

Sorry, P0216 is the VP44 death code. You might have a short somewhere in the harness.

 

Didn't have 216...had 236....but I appreciate it anyways! I got the dead pedal issue figured out, but that came to another problem, that I'll post up in the other forum...thanks!

 

Well I guessed the harness issue right.....sorta. Will close down this thread cause the issue has been resolved.