Cummins Diesel Forum banner

I am New to Cummins diesels and need some help

828 Views 5 Replies 3 Participants Last post by  DougDiesel
I bought a 1999 2500 extd cab 4x4 auto with 40k on it. (Stock) I have had a check engine light. I pulled the codes and came up with these:
P0236 Turbocharger Boost Pressure Sensor Performance / Rationality
P0238 Turbocharger Boost Pressure Sensor High

I am at a loss of where to start. Is this a MAP sensor problem? Wastegate?

Can anyone help?

Thanks Doug
1 - 1 of 6 Posts
Probablly the hose to diaphram is plugged or wastegate is frozen.
  • Like
Reactions: 1
1 - 1 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.