A8 Lim.


A8 Lim. (BSM) Knock Sensor 1   G61 , Checking

A8 Lim. (BSM) Knock Sensor 1 G61 , Checking

Knock Sensor 1 G61 , Checking A8 Lim. General Description The Knock Sensor 1 G61 is a tuned accelerometer on the engine which converts engine vibration to an electrical signal. The Engine Control Module J623 uses this signal to determine the presence of engine knock and to retard spark timing. Special tools and workshop equipment required Multimeter. Wiring Diagram. Scan Tool. Test requirements Fuses OK. Battery voltage OK. Switch OFF all electrical and electronic ac..

A8 Lim. (BSM) Knock Sensor 2   G66 , Checking

A8 Lim. (BSM) Knock Sensor 2 G66 , Checking

Knock Sensor 2 G66 , Checking A8 Lim. General Description The Knock Sensor 2 G66 is a tuned accelerometer on the engine which converts engine vibration to an electrical signal. The Engine Control Module J623 uses this signal to determine the presence of engine knock and to retard spark timing. Special tools and workshop equipment required Multimeter. Wiring Diagram. Scan Tool. Test requirements Fuses OK. Battery voltage OK. Switch OFF all electrical and electronic ac..

A8 Lim. (BSM) Knock Sensor 3   G198 , Checking

A8 Lim. (BSM) Knock Sensor 3 G198 , Checking

Knock Sensor 3 G198 , Checking A8 Lim. General Description The Knock Sensor 3 G198 is a tuned accelerometer on the engine which converts engine vibration to an electrical signal. The Engine Control Module 2 J624 uses this signal to determine the presence of engine knock and to retard spark timing. Special tools and workshop equipment required Multimeter. Wiring Diagram. Scan Tool. Test requirements Fuses OK. Battery voltage OK. Switch OFF all electrical and electroni..

A8 Lim. (BSM) Knock Sensor 4   G199 , Checking

A8 Lim. (BSM) Knock Sensor 4 G199 , Checking

Knock Sensor 4 G199 , Checking A8 Lim. General Description The Knock Sensor 4 G199 is a tuned accelerometer on the engine which converts engine vibration to an electrical signal. The Engine Control Module 2 J624 uses this signal to determine the presence of engine knock and to retard spark timing. Special tools and workshop equipment required Multimeter. Wiring Diagram. Scan Tool. Test requirements Fuses OK. Battery voltage OK. Switch OFF all electrical and electroni..

A8 Lim. (BSM) Leak Detection Pump   V144 , Checking

A8 Lim. (BSM) Leak Detection Pump V144 , Checking

Leak Detection Pump V144 , Checking A8 Lim. General DescriptionWhenever the engine is running, vacuum is applied to the Vacuum Switch. This switch applies vacuum to the Upper Chamber of the pump when it receives a ground signal from the Engine Control Module J623 . This signal is a duty cycle pulse of approximately 40%. When vacuum is applied to the Upper Chamber, fresh air flows in through the One-way Inlet Valve, compressing the spring above the diaphragm. When the Diaphragm be..

A8 Lim. (BSM) Low Fuel Pressure Sensor   G410 , Checking

A8 Lim. (BSM) Low Fuel Pressure Sensor G410 , Checking

Low Fuel Pressure Sensor G410 , Checking A8 Lim. General DescriptionThe low-side fuel pressure is constantly monitored by the Low Fuel Pressure Sensor G410 and sent to the Engine Control Module J623 . If this pressure deviates from the desired pressure, the Engine Control Module J623 sends a signal to the Fuel Pump Control Module J538 . The Fuel Pump Control Module J538 then sends a PWM signal to the Transfer Fuel Pump G6 until the desired fuel p..

A8 Lim. (BSM) Map Controlled Engine Cooling Thermostat   F265 , Checking

A8 Lim. (BSM) Map Controlled Engine Cooling Thermostat F265 , Checking

Map Controlled Engine Cooling Thermostat F265 , Checking A8 Lim. General DescriptionThe Map Controlled Engine Cooling Thermostat F265 is controlled by the Engine Control Module J623 to calculate the correct amount of coolant flow to maintain the proper engine temperature. Special tools and workshop equipment required Multimeter. Wiring Diagram. Scan Tool. Test requirements Fuses OK. Battery voltage OK. Switch OFF all electrical and electronic accessories. Vehicles w..

A8 Lim. (BSM) Mass Airflow Sensor   G70  / Intake Air Temperature Sensor   G42 , Checking

A8 Lim. (BSM) Mass Airflow Sensor G70 / Intake Air Temperature Sensor G42 , Checking

Mass Airflow Sensor G70 / Intake Air Temperature Sensor G42 , Checking A8 Lim. General DescriptionThe signal from the Mass Airflow Sensor G70 / Intake Air Temperature Sensor G42 is used by the Engine Control Module J623 to calculate the volumetric efficiency. Based on the volumetric efficiency, and taking into consideration the lambda value and ignition timing, the Engine Control Module J623 calculates the engine torque. Special tools and workshop equ..

A8 Lim. (BSM) Motronic Engine Control Module Power Supply Relay   J271 , Checking

A8 Lim. (BSM) Motronic Engine Control Module Power Supply Relay J271 , Checking

Motronic Engine Control Module Power Supply Relay J271 , Checking A8 Lim. General DescriptionThe following procedure is used to diagnose the Motronic Engine Control Module Power Supply Relay J271 and the Engine Control Module J623 power supply voltage that is provided by the Motronic Engine Control Module Power Supply Relay J271 . Special tools and workshop equipment required Multimeter. Wiring Diagram. Scan Tool. Test requirements Fuses OK. Battery voltage OK. ..

A8 Lim. (BSM) Oxygen Sensor 2 After Catalytic Converter   G131 , Checking

A8 Lim. (BSM) Oxygen Sensor 2 After Catalytic Converter G131 , Checking

Oxygen Sensor 2 After Catalytic Converter G131 , Checking A8 Lim. General DescriptionThe Oxygen Sensor 2 After Catalytic Converter G131 downstream of the primary catalytic converter supplies the Engine Control Module J623 with a voltage signal (nonlinear) indicating “rich” or “lean. If the primary catalytic converter is supersaturated with oxygen (lean mixture), Oxygen Sensor 2 After Catalytic Converter G131 will send the Engine Control Module J623 a nonline..




Showing 61 to 70 of 134 (14 Pages)