Emission Applications

1991 Porsche

Model, Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

All Engines MFI

PCV, ⁽²⁾ EVAP, TWC, FR, SPK, ⁽³⁾ AP, HO2S, CEC, ⁽⁴⁾ MIL
EVAP-VC

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Vapor canister type.

⁽³⁾

928 only.

⁽⁴⁾	California models only.