ASE A8 Engine Performance guide exam help

ASE A8 Engine Performance is part of the Automobile & Light Truck Certification Tests for technicians who diagnose, service, and repair cars, SUVs, and light-duty trucks up to Class 3. ASE lists A8 as 50 scored questions, with 60 total questions in the certification appointment because certification tests include additional unscored research questions; the testing time is 1 hour 15 minutes. Certification also requires appropriate hands-on work experience, and credentials must be renewed every five years. The official A8 blueprint covers General Diagnosis (12 scored questions, 24%), Ignition System Diagnosis and Repair (8, 16%), Fuel, Air Induction and Exhaust Systems Diagnosis and Repair (9, 18%), Emission Control Systems Diagnosis and Repair (8, 16%), and Computerized Engine Controls Diagnosis and Repair (13, 26%). Preparation should emphasize driver complaint verification, service information, exhaust color and odor, vacuum and pressure tests, power balance, compression and leak-down tests, ignition waveforms, fuel pressure and delivery, air induction faults, exhaust restrictions, PCV, EGR, secondary air, catalytic converter, EVAP, scan tool data, DTCs, sensors, actuators, control modules, and drivability diagnosis.