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Infiniti
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2004
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Q45
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Repair and Diagnosis
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Engine Performance
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Testing & Diagnosis
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Engine Control System
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DTC P0550: PSP Sensor
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Diagnostic Procedure
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3. Detect Malfunctioning Part
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
3. Detect Malfunctioning Part
Check the following.
Harness connectors F5, E315
Harness for open or short between ECM and PSP sensor
: Repair open circuit or short to ground or short to power in harness or connectors.