Fuel Trim: Teaching Essential Skills for Engine Performance скачать в хорошем качестве

Fuel Trim: Teaching Essential Skills for Engine Performance

Thanks for watching ATech Training's video on Teaching Essential Skills for Engine Performance. In this video you will learn to master fuel trim (STFT & LTFT) analysis for effective engine diagnostics. This course covers: air-fuel ratio fundamentals, sensor operation, fuel trim interpretation, OBD-II scan tool usage, and troubleshooting common fuel trim issues. If you have questions or need more information visit https://www.atechtraining.com/contact-us 0:20 Class Objectives 0:55 Fuel Trim Trends 3:55 Fuel Trim Control Example 5:36 Fuel Trim OBDII Example 7:04 Fuel Trim Monitor 11:03 Tech Tips 12:51 Fuel System Monitor Drive Cycle (Hyundai) 16:08 Code Criteria 19:50 TSB Check (Hyundai) 23:17 Vehicle Load 25:49 Fuel Trim Cells 27:36 Starting Point in all Driveability Diagnostics 28:38 O2 Sensors 30:59 Fuel Trim Guidelines 31:53 O2 & Short-Term Fuel Trim 32:35 More Fuel Trim Guidelines 33:27 Fuel Trim Data Streams 34:53 OBDII AFR Current 36:04 EQ Ratio/LAMBDA 37:17 OEM Names for Fuel Trim 41:58 Feeding the Catalytic Convertor 45:02 Logical Fuel Trim Diagnostics 47:51 Fuel Requirement Calculation 51:00 Load & RPM 53:02 What's the Difference: Speed/Density V.S. Vane/MAF 56:08 MAP & MAF 58:43 Most used fuel Trim Testing Procedures 1:00:35 Drive Cycle Test Route 1:04:17 Idle Testing 1:07:23 20-40 MPH Test 1:09:13 40-60 MPH Test 1:10:40 High Load