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OBD II scanner from Harborfreight 850 1997

posted by  Vladimir on  Wed May 5 07:47 CST 2004
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last visit: Sun Oct 5 18:40 CST 2014
[RELATED]

Some codes that turn on the Check Engine light are proprietary Volvo codes and will not show up on a generic OBDII scanner. Most scanners will be able to erase the codes, though. I have a generic code reader I bought at AutoZone for $180 (ouch!) and it does not see all the codes, but extinguishes the CE lamp even when it can't display the code.

This whole OBDII thing is a racket to help dealers raise the revenue in their service departments. It always ends up being a trial-and-error game in the end and OBDII is mostly useless in helping to diagnose. I had a Check Engine light problem that would not go away until my dealer kept the car for almost 3 months (under warranty and I had a free loaner) and replaced everything in the fuel evaporative system possible including the gas tank. Ended up being some small gromet that was apparanly missing from the factory (the car did this since 1500 miles). So much for the OBDII as a diagnostic tool.


Good luck.


--
Vladimir. '98 S70 base, 5-speed manual - his, '93 945 - hers,






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