2010 Ford Edge 3.5L P0303 Misfire Diagnostic! - The Power Of Relative Compression Testing!

This pesky P0303 misfire DTC keeps coming back. Why haven’t any of these cheap eBay parts fixed this misfire condition? Sometimes scan data just isn’t enough, let’s bust out the scope and dig deeper! Our customer has already replaced the spark plugs, coils, and injectors themselves.. Did they get bad new parts out of the box? Are we dealing with an electrical or mechanical issue? let’s find out!

We found main issue, RC test for the win! But what's the next step? What now? I'll be making another video, showing how to use the data we gathered. And apply it to further pinpoint the root cause of this pesky misfire, so be on the lookout for Part 2!

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