Operation CHARM: Car repair manuals for everyone.
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

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Emission System Application Chart

EMISSIONS CERTIFICATION OBD II

ENGINE 3.8L (231 cid)

FUEL SYSTEM Sequential Fuel Injection (SFI)

DEVICES & SYSTEMS
Heated Oxygen Sensor [1] HO2S
Manifold Absolute Pressure Sensor MAP
Mass Air Flow Sensor MAF
Knock Sensor KS
Throttle Position Sensor TPS
Exhaust Gas Recirculation System EGR
Powertrain Control Module PCM
Evaporative Emission Control System EVAP
Malfunction Indicator Lamp MIL
Positive Crankcase Ventilation System PCV
Three-way Catalytic Converter TWC
Fuel Pipe Restrictor FR
Distributorless Ignition System [2] DIS

[1] Exhaust system has 4 oxygen sensors. The two in front of the catalytic converters are for fuel management and the two after the converters are used for catalyst operation monitors.
[2] Electronic Ignition Control (IC); Electronic Spark Control - Knock Sensor (KS).