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P0550 Diagnostic Trouble Code Discussion for May 2008

Power Steering Pressure Sensor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0550
Help Request Posted
2001 Infiniti I30 3.0L No Start, Poor Idle Quality, Stall VIN: A71T024345
P0550: IAC Circuit Malfunction. ... one here. Vehicle came in for no start. I got in it and found that it would run while holding throttle open. Scanned and found P0550. Pulled computer because smelled burning smell in vehicle. Found IAC Controller in computer burnt up. Replaced IAC Valve wi...
May 06, 2008
2004 Nissan Titan LE 5.6L MIL Lamp on VIN: 1N6AA06B04
P0550: power steering sensor. None of the sensors have a 5 volt reference. I have checked all the sensors on the same ciruit, and no 5 volts. I have unplugged all sensors, still no 5 volts. I have back probed the pcm, still no 5 volts coming out to any sensors. I have checked powers and gr...
May 27, 2008