Diagnosing Sick O2 Sensors - O2 Sensor Saga Part 2

Mike shows how to use an Autel Scanner to get the trouble codes and the data stream from upstream sensors. He runs down the list of all the things that could cause the sensors to throw the DTCs. Also covered are testing fuses, checking for vacuum leaks, and creating a test rig to check sensor voltage.

00:00 Intro
00:48 Scanner
01:39 Scan the Mustang
02:14 Sensor Graph
02:45 List of Causes
02:57 Fuel Pressure
03:22 Exhaust Leaks
03:33 Blown Fuse
04:17 Vacuum Leak
05:28 MAF Sensor
06:10 Throttle Body
06:40 Faulty Wiring
07:28 Faulty ECU
07:42 Faulty Sensors
07:54 Wrap Up
08:35 Fan
08:58 Blooper

Mike the Backyard Mechanic (not a real mechanic) works on his cars in his garage (not actually his backyard) and shows how to do repairs and mods, often not correctly, for your entertainment. Mike is not a REAL mechanic, he has common knowledge. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Mike.

[dandeclerck]

This.. is.. by far.. the best one you've done.. BTW, you can use spray solvents (like starter fluid) instead of propane if you're in a pinch, or it's windy.. I use Bluedriver and my phone instead of Autel. The software is always up to date.