Complete the A8 practice quizzes to see if you are ready to take on the test.

General Engine Diagnosis
#1 - Your goal: 70%
Average score: 67.9%

Covering the steps required to diagnose engine performance issues beginning with the customer interview and proceeding with a preliminary inspection, obtaining vehicle service information, comprehensive engine testing, diagnosis and repair.  Also covers diagnosing engine performance problems, symptoms, common failures, testing procedures and diagnosis and repair of the internal engine, ignition system, fuel system, electrical system, emission control system, and cooling system.

Ignition System Diagnosis
#2 – Your goal: 70%
Average score: 64.6%

This quiz covers the different types of ignition systems, different testing procedures and repair of the various components of the ignition system.  It covers the secondary circuit, spark plug and ignition cable service, position sensors, magnetic pickup sensor and common problems associated with the ignition system.

Fuel, Air, & Exhaust
#3 – Your goal: 70%
Average score: 70.2%

This quiz covers the components, common symptoms, testing and repair of the fuel, air induction and exhaust systems.  It covers fuel system service (fuel line and fuel filter replacement, fuel pump and fuel injection control systems), oxygen sensor service, fuel injector service, air intake system service, exhaust system service, turbocharger systems and supercharger service.

Emission Control Systems
#4 - Your goal: 70%
Average score: 76.2%

Each vehicle is equipped with different emission control systems with different subsystems.  This quiz covers the inspection, testing procedures and service of some of these subsystems including: positive crankcase ventilation (PCV) systems, exhaust gas recirculation (EGR) systems, exhaust gas treatment, catalytic converter systems, inlet air temperature control, intake manifold temperature control, fuel vapor control.  It also covers evaporative emission controls and EVAP system leak detection.

Computer Engine Controls
#5 – Your goal: 70%
Average score: 73.2%

All OBDII vehicles are equipped with an electrical control system and malfunction indicator lamp (MIL) that monitors various systems of the vehicle and records a diagnostic trouble code (DTC) in the event of a communicated failure.  This quiz covers DTC’s, OBDII system operation, system monitors, operating modes, tests, diagnosis of emissions and drivability problems, sensors, output actuators, diagnostic tools and PCM/ECM replacement.