Question about 1999 Toyota 4Runner
A code PO301 indicates a cylinder misfire. You may want to start with a tune-up, including new plugs and wires, especially if they are original from the factory. If there is a cap and rotor, replace them as well. To double-check the problem though, I would recommend bringing your vehicle into a local technician so he can put it on an engine diagnostics computer.
I hope this gives you a start as to where to look! Please let me know if you need any further assistance in this matter. :)
Posted on Nov 18, 2009
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Posted on Jan 02, 2017
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