misfires Archives - Tomorrows Technician
Diagnosing Misfires

What if there are no codes and a misfire is intermittent? This is where it gets complicated. 

Freeze Frame Diagnostics

Freeze frame data is a “snap shot” of when the code occurs of the specific sensor PIDs.

Deciphering An Engine Misfire Code

Many changing factors must be met to pass a misfire monitor.

Misfire Codes After A Spark Plug Replacement (Video)

After replacing spark plugs, you may get a handful of misfire codes. This video is sponsored by Autolite.

Diagnosing A P0316 Code (Video)

Code P0316: Engine Misfire Detected on Startup (First 1000 Revolutions) could have many causes. Sponsored by Autolite.

VW Engine Misfire Diagnosis

Misfire faults have been commonly related to loose or damaged electrical connections and/or poor circuit grounds.

Drivability Issues Fuel Trim Diagnostics

No code diagnostics are some of the most challenging drivability issues.

Mode $06 Misfire Diagnosis

Understanding why ‘Mode $06’ was developed and how it works to identify misfires.

Subaru Injector Misfire

Follow the proper diagnostics for any of the DTCs listed using the procedures provided in the applicable service manual.

Ignition And Coil Flashover (VIDEO)

Carbon tracking or flashover on a spark plug, the boot or the coil, is not normal. Sponsored by Standard Motor Products.

Seasonal Fuel Blends

The cause of the misfires is the temperature fuel evaporates, otherwise known as the volatility.

Ignition Coil Service: Start To Finish (VIDEO)

Diagnostics depends on the coil’s design and what wires are in the connector. Sponsored by Standard Motor Products.