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I am New to Cummins diesels and need some help

827 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 - 4 of 6 Posts
thanks I will check that
What did you do when your wastegate was stuck?
what is the best way to check for a stuck wastegate? and a fix if it is stuck?
1 - 4 of 6 Posts
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