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

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

Or, hide this message: temporarily or permanently

Engine Controls

Engine Controls:





HEATED OXYGEN SENSOR (HO2S) #1
HEATED OXYGEN SENSOR (HO2S) #2
OCTANE ADJUST (SHORTING BAR)
PCM POWER RELAY

Engine Controls:





3-4 SHIFT SOLENOID
A4LD AUTOMATIC TRANSMISSION
CANISTER PURGE SOLENOID
ENGINE COOLANT TEMPERATURE (ECT) SENSOR
INTAKE AIR TEMPERATURE (IAT) SENSOR
PRESSURE FEEDBACK ELECTRONIC (PFE) MODULE
THROTTLE POSITION (TP) SENSOR
TORQUE CONVERTER CLUTCH (TCC) SOLENOID

Engine Controls:





CLUTCH PEDAL POSITION SWITCH
CLUTCH TRIPLE FUNCTION SWITCH
CLUTCH TRIPLE FUNCTION SWITCH JUMPER
FUEL INJECTORS

Engine Controls:





CAMSHAFT POSITION (CMP) SENSOR
EGR VACUUM REGULATOR (EVR) SOLENOID
IDLE AIR CONTROL (IAC) VALVE
VEHICLE SPEED (VSS) SENSOR

Engine Controls:





FUEL PUMP RELAY
FUEL PUMP/SENDER
MASS AIR FLOW (MAF) SENSOR