Jul 24, 2019  
2018-2019 Course Catalog 
    
2018-2019 Course Catalog [ARCHIVED CATALOG]

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ATG 337 - GM Engine Performance

Credits: 4
Lecture Hours: 3
Lab Hours: 2
Practicum Hours: 0
Work Experience: 0
Course Type: Voc/Tech
Diagnosis and service of microprocessor-controlled fuel and ignition systems. Oscilloscopes, engine analyzers, digital meters and other high-technology instruments will be used.
Prerequisite: ATG 336 , ATG 327  and ATG 328  
Competencies
  1. Perform proper shop safety procedures
    1. Apply work area safety skills.
    2. Demonstrate safe personal working habits.
    3. Practice safe tool and equipment usage.
    4. Follow manufacturers repair procedures.
    5. Follow manufacturer and government warnings and regulations.
  2. Explore General Engine Performance Diagnosis
    1. Identify and interpret engine performance concerns; determine necessary action.
    2. Research applicable vehicle and service information, vehicle service history, service precautions, and technical service bulletins.
    3. Describe Electronic Engine Control Terminology and Standards.
    4. Explain The Function and Operation of Onboard Engine Computers.
    5. Discuss Electronic Engine Control Components (Sensors) and Their Operation.
  3. Examine Computerized Engine Control Diagnosis and Repair
    1. Retrieve and record diagnostic trouble codes, OBD monitor status, and freeze frame data; clear codes when applicable.
    2. Access and use service information to perform step-by-step (troubleshooting) diagnosis.
    3. Perform active tests of actuators using a scan tool; determine necessary action.
    4. Describe the importance of running all OBDII monitors for repair verification.
    5. Diagnose the causes of emissions or drivability concerns with stored or active diagnostic trouble codes; obtain, graph, and interpret scan tool data.
    6. Diagnose emissions or drivability concerns without stored diagnostic trouble codes; determine necessary action.
    7. Inspect and test computerized engine control system sensors, powertrain/engine control module (PCM/ECM), actuators, and circuits using a graphing multi-meter (GMM)/digital storage oscilloscope (DSO); perform necessary action.
    8. Diagnose drivability and emissions problems resulting from malfunctions of interrelated systems (cruise control, security alarms, suspension controls, traction controls, A/C, automatic transmissions, non-OEM installed accessories, or similar systems); determine necessary action.
  4. Evaluate Ignition Systems.
    1. Diagnose (troubleshoot) ignition system related problems such as no-starting, hard starting, engine misfire, poor drivability, spark knock, power loss, poor mileage, and emissions concerns; determine necessary action.
    2. Inspect and test crankshaft and camshaft position sensor(s); perform necessary action.
    3. Inspect, test, and/or replace ignition control module, powertrain/engine control module; reprogram as necessary.
    4. Remove and replace spark plugs; inspect secondary ignition components for wear and damage.
  5. Diagnosis and Repair Emissions Control Systems
    1. Diagnose emissions and drivability concerns caused by the exhaust gas recirculation (EGR) system; determine necessary action.
    2. Diagnose emissions and drivability concerns caused by the evaporative emissions control system; determine necessary action.
    3. Inspect and test electrical/electronic sensors, controls, and wiring of exhaust gas recirculation (EGR) systems; perform necessary action.
    4. Inspect, test, service, and replace components of the EGR system including tubing, exhaust passages, vacuum/pressure controls, filters, and hoses; perform necessary action.
    5. Inspect and test electrical/electronically-operated components and circuits of air injection systems; perform necessary action.
    6. Inspect and test catalytic converter efficiency.
    7. Inspect and test components and hoses of the evaporative emissions control system; perform necessary action.
    8. Interpret diagnostic trouble codes (DTCs) and scan tool data related to the emissions control systems; determine necessary action.
  6. Diagnosis and Repair Fuel, Air Induction, and Exhaust Systems.
    1. Diagnose (troubleshoot) hot or cold no-starting, hard starting, poor drivability, incorrect idle speed, poor idle, flooding, hesitation, surging, engine misfire, power loss, stalling, poor mileage, dieseling, and emissions problems; determine necessary action.



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