Diagnostic codes

  • Last Post 24 August 2020
Truck posted this 06 August 2019

I have a 2008 Toyota Sequoia with a 5.7 engine. What does code P0012 mean and what is wrong or how to fix it. Thanks

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darin beseman posted this 08 July 2020


Charlie Taylor posted this 24 August 2020

I have an 05 trailblazer and it's running rough and am pulling up po300 code and I replaced all injectors with some I was told was good from junkyard and now it's running a little better but still getting the random misfire code so I'm thinking one is still bad how can I pinpoint that