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Home >> Pontiac >> 1991 >> 6000 SE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing - 2.5L/151 TBI In-Line 4 VIN [R] >> Emission Control System >> PCV Diagram
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PCV Diagram

NOTE: This engine does not use the "typical" PCV valve but rather, a PCV orifice.
Fig 1: PCV Valve Location (2.5L VIN R)
G50B14135
Fig 2: PCV Valve Orifice X-Ray View (2.5L VIN R)
G50C14136