Save Money on Car Repairs Code Reader for Check Engine Light Under $20

Going for car inspection and decided to check codes before bringing car in. My scanner picked up code p421 Catalyst efficiency below ... Check engine light staying on and red light on Code reader in engine compartment solid red all at times. The ''free scan'' may only have picked up one of many codes or the tester there might not have the tech sense to know there's more to the ... $17.98. 201-500 pieces. $16.98. ≥501 pieces. Handheld KONNWEI OBD2 Scanner Car Code Reader KW680 Enhanced Check Engine Light Scan Tool. Note: Please be cautious ... Diagnostic OBD II Scanner: Dive deep into your car's systems with this cutting-edge OBD II scanner. It's your key to understanding and resolving issues. The "Check Engine" light is illuminated on my '00 Outback Wagon. I'd bought an OBD II reader from Harbor Freight (a cheapie). The first thing to do when your Check Engine light is on is to use an OBD-II scanner to accurately scan and read which system in your vehicle is triggering the ... My check engine light came on so I'm needing a code reader. I'm wanting something better than the $20 unit at Wal-Mart. What do you guys use ... Car Code Reader - USB-Powered Scanner for Check Engine Light & Fault Codes, Compatible with All OBDII Cars · Last day · $ · $ · -62% · Almost sold out · Pay $4.10 ... It seems odd that you need a $20 scanner to read OBD-II error codes. Why don't cars simply display the code on a screen for you?