I want to purchase a OBD-II scanner but have been overwhelmed with the
options availible. Between eBay and google there are way too many to
I am looking for reasonable bang for the buck, plain and simple. All
my cars are GM’s which I believe has VPW protocol and from what I am
seeing a code reader is just that, a code reader. All seem to be the
same in this aspect, they read the code.
Ultimately I’d like one where I can load each of my cars factory set
of parameters and be able to compare my cars true performance against
those parameters. I have a laptop and don’t mind using something basic
like ELMScan if there are car spec data bases and fairly good software
packages to go with it. Can you guys narrow the field for me and guide
me to something ok for a backyard mechanic?
Also, It’d be really cool if it were backwards compatible with
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