Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Second-hand part

I bought this to replace a faulty Exhaust Gas Recirculation Valve on my '96 Geo Metro, but when it arrived it didn't test to the specifications required in the OEM repair manual. I sent it back and received a replacement but it also failed the volt-meter tests. Did not function as it is supposed to. It would seem these parts are factory seconds being sold as new/functional parts.In the end I had to request a refund because neither of the parts I was sent worked or resolved the computer error code. A big waste of time.