1998 Chevy 5.7 misfire (P0300) and fuel system too lean (P0171 and P0174) trouble codes AFTER the intake manifold was removed. This is the same van that I shot two different videos on, one for each of my channels.

View More About This Video: How to quickly identify a vacuum leak using fuel trim and water 1 comment

This car had multiple problems. In this particular video I will be showing you the cause of fixed lean oxygen sensor signals (both banks) and very positive STFT and LTFT numbers. I will also show you how to use fuel trim after the repair to determine if you have any other problems.

View More About This Video: Mercury Cougar high idle speed, lean condition P0171, P0174 Add new comment

This is a Ford Expedition 5.4 with a vacuum leak causing "System Too Lean" trouble codes P0171 and P0174. In this video I will show you how to use freeze frame data and fuel trim numbers to identify a vacuum leak. Then I will be using water to locate the specific area of the vacuum leak.

View More About This Video: System Too Lean (P0171, P0174) - Vacuum Leak Quick Test - Ford 5.4 Add new comment

This vehicle came in with a long history, a severe misfire complaint that two shops couldn’t fix, and lots of parts changing along the way.

View More About This Video: 2002 Ford Escape 3.0 Misfire - ignition coils connected wrong Add new comment

The method of timing verification shown in this video can be used on any car.

View More About This Video: How to check for a jumped timing chain or belt Add new comment
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