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OBD II scanner from Harborfreight 850 1997

posted by  volvocrazed on  Wed May 5 06:07 CST 2004
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last visit: Thu Jul 28 18:15 CST 2011
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I recently purchased the Launch OBD II scanner from Harborfreight for $40. When I plug it into my '97 850 (check engine light is ON), instead of displaying an error code, the unit just gives 4 dashes (----). The unit does reset the check engine light as advertised though, but then it comes back on after a while - not surprisingly since I have not fixed the problem. I went through this several times now. So I finally went to Auto Zone to have the error code checked (for free). Their reader saw code P0410 (Secondary Air Injection System Malfunction). That's exactly what my mechanic' reader had found (after he replaced the relay on the auxiliary air pump, the light came back on after a few days...).
Bottom line, my code reader does not see the P0410 code.

My question is: Has anyone else had trouble with that cheap little Launch OBDII reader from Harborfreight? I wonder if I was just unlucky to get a bad unit, or if it is general problem with the product. So far I have only seen good reviews of it.

Thanks.






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