Check engine light has been on in my Z71. Just wondering if those diagonostic testers work? Is it worth the $30 bucks they cost?
2001 reg-cag Z71
Diagnostic testers at Autozone. Do they work?
Aug 27, 2004
4 Replies
First reply
You can't buy a tester for OBDII for $30 bucks. Unless you live in Californicate, Auto Zone will read the codes for free. .
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