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I just got a vagcom shareware version. I got it to reset CEL and read codes. Its spitting out a code for my 02's. The thing is that I have no idea how to diagnose a problem with the vag. Specifically, how do you know the limits that a specific measuring block like the O2 block should stay in. The 02 blocks output is in %. How much is too much or too little. Is there a site that has this info. Does the registered version have this info.
 

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I think you'll need to go to the service manual. It won't tell you "block 01 = this" but it will tell you that this parameter will be between this and that. The registered version won't help you. It's pretty much the same as the shareware version. Be sure to check the Ross-Tech website deeply as they have all kinds of good tech info as well as Bentley Publishers as they have good info too. They also have the manuals (paper or electronic) I'm refering too.
 
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