Elite.deals · Guides
Elite Deals guides
These are plain-language guides to go with the Amazon deals we list. One explains how Amazon's deal types differ, and three cover check-engine codes and OBD2 code readers. Each guide cites the Amazon help pages, manuals and product pages it draws on.
How to tell if an Amazon list price is inflated
What Amazon's List Price, Typical Price and Was Price labels mean, what the FTC says about former-price claims, and five checks you can run on any product page.
Amazon deal types explained: Lightning Deals, coupons, Subscribe & Save and more
How Lightning Deals, Deal of the Day, coupons, Subscribe & Save, Prime-exclusive deals and Resale or Renewed items differ, and what to check before you buy.
What does the check engine light mean?
What a steady or flashing light means, how startup checks differ, what codes can tell you, and why clearing them is not a repair.
How to read check engine light codes with an OBD2 scanner
Plug in, read the code, save the freeze frame, and know what stored, pending and permanent mean.
OBD2 code readers compared: MOTOPOWER MP69033, ANCEL AD410 and Innova 5210
What each diagnoses, which vehicles it covers, and which buyer each suits.
Looking for deals instead? Browse automotive deals or the best Amazon deals.