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P0138 Diagnostic Trouble Code Discussion for September 2006

Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage

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Trouble Ticket Help Requests for DTC P0138
Help Request Posted
1996 Cadillac DeVille 4.6L crankcase vacuum VIN: 1G6KD52Y6T
P0138: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Input. we are getting 19 inches and climbing vacuum at cranckase vetalation hose from frnt valve cover to throttle body-this is tested on hose at throttle body side i should not have any ~- when we remove hose at throttle body there is vacuum in the crankcase??? it i...
September 08, 2006