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P0234 Diagnostic Trouble Code Discussion for April 2008

Turbocharger Engine Overboost

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Trouble Ticket Help Requests for DTC P0234
Help Request Posted
2003 Dodge Ram 3500 5.9L Excessive Emissions, MIL Lamp on VIN: 3D7MA48643
P0234: over boost. ... emmissions, black smoke on accel. Code P0234 over boost. The ECM shows 14PSI and 1.2 Volts KOEO and Idle, Test drive have 25 psi boost on the gauge. ECM shows 41PSI is mimics the boost gauge. I believe the I should see 0 to 1psi at idle at ECM? Check MAP s...
April 17, 2008