Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Emission Control Systems: Application and ID

EMISSION CONTROL DEVICES AND SYSTEMS
PCM Powertrain Control Module
EGR Exhaust Gas Recirculation
EVAP Fuel Evaporative System
FR Fill Pipe Restrictor
HO2S [1] Heated Oxygen Sensor
MFI Multiport Fuel Injection
MIL Malfunction Indicator Light
PCV Positive Crankcase Ventilation
SPK Electronic Spark Advance (DI/ESA) Control System
WU-TWC Warm-Up Three Way Catalytic Converter

[1] Three HO2S