Hello! I've been looking into getting a code reader for my 2004 Ford F-150 5.4L V8. Is an OBD 2 scanner from Cen-Tech useful? https://www.harborfreight.com/obd-ii-code-reader-64981.html
See here for a comprehensive list of scan tools, in various budget levels -
https://carkiller.com/scottykilmer/postid/226842/
For Harbor Freight, that is the most basic code reader. It will spit out codes, and that’s about it. Great for giving you a general idea of what engine codes to look at.
This was from Harbor Freight gives a little more information but it does cost a little more.
https://www.harborfreight.com/zr8s-obd2-code-reader-with-live-data-57667.html
the list that @itwt shared is a good one to review as well.
In the future make sure to check the FAQ at the top, many of the questions like that are listed.
