LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Pontiac >> 1987 >> J2000/Sunbird L4-121 2.0L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Port Fuel Injection Models >> Function Selector Positions >> PPSW - Pump Pressure Switch
April 5, 2026: LEMON Manuals is launched! Read the announcement.

PPSW - Pump Pressure Switch



Indicates fuel pump feed circuit voltage. Should indicate battery voltage when engine is cranking or running.