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TRIONIC T8 Fuel Control System Expand All (for easy ctrl-f) Collapse All Repair Instructions Description and Operation Main components Brief description Intake air sensor (688), T8 Brief description, BioPower Fuel properties, E85 Detailed description EVAP canister purge valve (321), T8 Secondary air system Engine variant for E85 fuel Pressure sensor, EVAP (585) Torque control, basic function EVAP shut-off solenoid valve (588) Ionization Detection Module (740) Engine torque control Column Integration Module (CIM) (703) Request for engine torque, 1x Limitation of engine torque, 2x Limitation of vehicle speed, 3x Minimum engine torque, 4x Control module, Trionic 4-cyl. petrol (589) Engine oil pressure switch (44), T8 Maximum engine torque, 5x Engine torque, BioPower Emission-dependent torque limitation, 6x Brake switch, cruise control (134), T8 Safety-related torque limitation, 7x Pedal request Load compensation Throttle adjustment Turbo adjustment Fuel injection, basic function Basic quantity, fuel Compensation Closed loop Ventilation Fuel adaptation Ethanol adaptation Starting fuel Injection duration Fuel level sensor (46), T8 Fuel shut-off Injectors Ignition, basic function Idling speed ignition timing Catalytic converter heating ignition Normal ignition timing Knock control Starting ignition timing Ignition system Ionization current measurement Engine management, bus information Brake light switch (29), T8 Fuel pump relay (102), T8 Clutch switch, cruise control (133), T8 Compressor, A/C (170) Charge air solenoid valve (179a), T8 Coolant temperature sensor (202), T8 Mass air flow sensor (205), T8 Injector (206), T8 Main relay, engine management system (229), T8 Coolant level switch (242) Engine oil level switch (243), T8 Ignition coil with integrated power stage (320), T8 Crankshaft position sensor (345), T8 Accelerator pedal position sensor (379), T8 Pressure sensor, intake manifold (431) Front preheated oxygen sensor (592), T8 Rear preheated oxygen sensor (593), T8 Throttle body actuator (604), T8 Pressure sensor, A/C (620) T8 Pressure switch, power steering fluid (739), B207 Solenoid valve, turbo bypass (605), T8 Component Locator Generator (2) Charge air solenoid valve (179a) Motor, secondary air injection pump (326) Ignition Switch Module (20) Solenoid valve, turbo bypass (605) Main fuse box 727 for B207, in engine bay Fuel pump relay (102) Main relay, engine control system (229) EVAP canister purge valve (321) Motor, fuel pump (323) Heated oxygen sensor relay (443) Engine oil pressure switch (44) Charge air pressure sensor (603) Intake air temperature sensor (407) Engine bay electrical center 342 (UEC) Ionization Detection Module (740) Instrument panel electrical center 22 (IPEC) Connector H2-18 Pressure sensor, EVAP (585) EVAP shut-off solenoid valve (588) Clutch switch, cruise control (133) Control module, Trionic, B207, switch B (589B) Fuse 2, engine bay fuse box 342 Fuel pump module (689) Mass air flow sensor (205) Intake air sensor (688) Brake switch, cruise control (134) Crimp J40, engine harness, Trionic Coolant temperature sensor (202) Engine oil level switch (243) Heated oxygen sensor element (271) Brake light switch (29) Ignition coil with integrated power stage, cyl 1 (320a) Connector H8-9 Ignition coil with integrated power stage, cyl 2 (320b) Ignition coil with integrated power stage, cyl 3 (320c) Fuel level sensor (46) Ignition coil with integrated power stage, cyl 4 (320d) Main instrument display panel (540) Crimp J42, engine harness, Trionic Crankshaft position sensor (345) Crimp J45, engine harness, Trionic Grounding point G7, B207 Accelerator pedal position sensor (379) Pressure sensor, intake manifold (431) Fuse 2, main fuse box 727 for B207 Data link connector 16 pin, CARB (445) Injector, cyl 1 (206a) Injector, cyl. 2 (206b) Fuse 4, main fuse box 727 for B207 Unit, steering column assembly, (CIM) (703) Injector, cyl. 3 (206c) Injector, cyl. 4 (206d) Pressure sensor A/C (620) Front heated oxygen sensor (592) Rear heated oxygen sensor (593) Fuse 6, instrument panel electrical center 22 Throttle body actuator (604) Connector H24-2 (T8) Crimp J84, dashboard harness Connector H33-1 Power steering fluid pressure sensor (739) Fuse 21, dashboard electrical center 22 Crimp J26, engine harness, Trionic Crimp J31, engine harness, Trionic Crimp J32, engine harness, Trionic Crimp J33, engine harness, Trionic Crimp J34, engine harness, Trionic Crimp J35, engine harness, Trionic Crimp J36, engine harness, Trionic Crimp J37, engine harness, Trionic Crimp J38, engine harness, Trionic Crimp J39, engine harness, Trionic Crimp J43, engine harness, Trionic Crimp J44, engine harness, Trionic Crimp J46, engine harness, Trionic Crimp J48, engine harness, Trionic Grounding point G34S Crimp J95, main harness Specifications Connector, brake, cruise control (134) General data Injectors (206), T8 Fuel pressure regulator Fuel pump motor (323), T8 Control module, Trionic T8 (589) Fuel level sensor US (46), T8 Fuel level sensor (46), T8 Tightening torque Main relay, engine control system (229) Fuel pump relay (102) Connector, clutch, cruise control (133) Relay, A/C compressor (156) Spark plug (157) Charge air solenoid valve (179a) Coolant temperature sensor (202), T8 Mass air flow sensor (205), T8 Trionic 8, Mode 06 EVAP canister purge valve (321) Crankshaft position sensor (345), T8 Accelerator position sensor (379) Pressure sensor, intake manifold (431) EVAP pressure sensor (585) EVAP shut-off solenoid valve (588) Pre-heated oxygen-sensor, front (592) Heated oxygen-sensor, rear (593) Throttle body actuator, T8 (604) Solenoid valve, by-pass, turbo (605) Pressure sensor, A/C (620) Intake air sensor (688), T8 Special Tools and Equipment Diagnostic Information and Procedures Schematic and Routing Diagrams