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Rav4 P0300 code. Counterfeit spark plugs.

380 Views 9 Replies 7 Participants Last post by  @2011rav4
I had a P0300 code for random cylinders’ misfire for a couple weeks now. Today I went to check the spark plugs and all six plugs’ electrode had worn down badly. They were on the car for a little less than 40,000 miles. They are supposedly Denso Iridium in Toyota packaging from EBAY.
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Wow, that's terrible and unfortunate. Here was a thread on how to spot fake ones, and from the official Denso PDF in case you haven't seen them before.
Thanks for that info. The only thing is the Denso PDF site seems to have a few spelling/grammar mistakes that I wouldn't have expected.
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