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I am New to Cummins diesels and need some help

828 Views 5 Replies 3 Participants Last post by  DougDiesel, 
D
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
P1693

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

Can anyone help?

Thanks Doug
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dozer12216
Probablly the hose to diaphram is plugged or wastegate is frozen.
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