Negative Fuel Trim Bank 1 - Positive Fuel Trim Bank 2

Testing an O2 sensor/AF sensor for range and accuracy!

Can an unloaded voltage drop test still give good direction?

New SD Premium video is up! [Not A Typical Low Power Condition]

Low Power, No Codes, Shifted Crank Gear Keyway

1985 22RE First Start After Replacement Engine [Lots of Problems!]

Did you fix it? [counter fuel trim numbers]

Fuel Trim Diagnostics [an SD Premium class] #fueltrim

Restricted Exhaust/Plugged Cat [Identification and Testing Procedures]

Weirdest Plugged Cat Ever??

RPM Drop Test [which cylinder is misfiring?]

Misfire Diagnostic Fundamentals [98 Toyota Camry]

Is a Relative Compression or Cranking Sound Test Foolproof?

How To Pinpoint a Vacuum Leak [the safe way]

Using the O2 Sensor at Wide Open Throttle to Determine Fuel Delivery [known bad]

Using the O2 Sensor at Wide Open Throttle to Determine Fuel Delivery [known good]

Weak Spark/RPM Drop Test [waste spark design] #misfire #ignitioncoil #rpmdrop

Using the O2 Sensor at WOT to Identify a Fuel Psi Problem

Cranking Compression Sound Test #misfire #techtraining #automotivediagnostics

How an Ignition Coil Works!

Ford Coil On Plug Misfire Diagnostics [E-350 V-10]

Quick Head Gasket Test! (chemical block tester)

Restricted, Clogged, Plugged Exhaust System Quick Test

Testing Ignition Coils and Fuel Injectors (Intentional Shutdown)

2014 Malibu Stalling/Misfire/Idle Lean Condition/Cat Codes/Billing For Diagnostic Time

Quick Test For Identifying a Bad Ignition Coil (Toyota Tundra)

Multiple Problems/Poor Customer Communication (New Fuel Pump Installed Follow up) P2

Multiple Problems/Poor Customer Communication (Low Power, Long Crank, Stalling P0171/P0174/P0121) P1

Honda Accord Ignition Misfire - Diagnosis & Repair

"Comeback" - Same Code Different Problem - Who Pays?

GDI Misfire "Comeback" What Did We Miss?

Hyundai/Kia 2.7 Jumped Timing Belt Symptoms and Diagnosis Part 2

Hyundai/Kia 2.7 Jumped Timing Belt Symptoms and Diagnosis Part 1

Troubleshooting An Intermittent Idle Only Misfire (Dodge Durango) Part 1

Using the Autel Ultra lab scope (Relative Compression Test)

BOSCH ADS 525X (Misfire Case Study)

2005 Mazda Miata Engine Fuse Keep Blowing (Short to Ground Testing Fundamentals)

Autel Maxisys Ultra Unboxing/2016 Chevy Cruze P0171 From Torn PCV Diaphragm

Low Power Troubleshooting Using a Dyno - a 2017 SD Premium video

2006 Hummer H3 Reduced Power Mode Troubleshooting (TAC/ETC Faults)

2014 Kia Forte 2.0 GDI Low Power, No Codes

Voltage Drop vs Resistance Testing (Flow Charts Suck!)

2001 Ford F-250 Misfire Troubleshooting (with MAF and IAT codes)

Misfire Quick Tests (Is it a spark, fuel or compression problem?)

Testing for a bad head gasket - Gas Analyzer vs Chemical

How to quickly identify a vacuum leak using fuel trim and water

Poor running, flashing CEL, no codes (bad computer ground) - Toyota

System Too Lean (P0171, P0174) - Vacuum Leak Quick Test - Ford 5.4

Symptoms and causes of a bad ignition coil

P0507 Idle Speed Performance Higher Than Expected (vacuum leak) - Jeep

How to find a misfire with no trouble codes (uScope)

How to identify a shorted ignition coil (Honda C.O.P.)

How to test for a restricted exhaust using the DPFE sensor on a Ford

How to test for a bad head gasket (chemical test)

Downstream Fuel Trim (A James Danner video review)

Ford F-150 P0171 P0174 Trouble Codes - vacuum leak (water test)

How to test for a plugged exhaust (picoscope & psi transducer)

How to find a vacuum leak with water

Pontiac Torrent (stalling, O2 and EGR codes)

Ignition testing with a scope (Secondary Waveforms) - open plug wire

2008 Hummer H3 Misfire Case Study (Part 1)

2008 Hummer H3 Misfire Case Study (Part 2)

2004 Mazda MPV Low Power Case Study

How to test for a restricted exhaust (catalytic converter)

How to test for a bad head gasket

Misfire caused by a vacuum leak

P0507 Idle Control System (RPM Too High) - vacuum leak - GM

Secondary Ignition Waveforms (common faults)

Misfire troubleshooting using exhaust gases (an SD Premium video)

Understanding Short Term and Long Term Fuel Trim (a SD Premium video)

How to determine which cylinder is misfiring (cylinder drop test)

Exhaust Backpressure Testing (known bad compared to known good)

Multimeter basics, voltage and resistance tests (a free SD Premium video)

How to perform a compression test with a scope (Picoscope)

How to perform a compression test with a scope (Verus-Vantage)

How to check for a jumped timing chain or belt

Cold Air Intake Warning! (missing air filter case study)

Jumped timing chain (no compression on 3 cylinders) - GM 3.6

How to find a short to ground (blown fuse)

How to test an Alternator (not charging from a blown fuse) - Mazda

Bad Alternator Diode causing transmission/speedometer problems

Why the MAF "unplug it test" is NOT always accurate (brake booster leak)

Engine does not crank (seized alternator) - Mini Cooper

2002 Ford Escape 3.0 Misfire - ignition coils connected wrong