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International Automotive Technicians Network
Re: Toyota Yaris Intermittent Misfire
Posted to Technical Discussion Forum on 12/2/2018

Damon, you missed a crucial piece of information that may have been very revealing. Freeze Frame data. If the P0302 had freeze frame that showed total fuel trim at 25% you would practically "know" it was an injector issue.

Test drive it again with a vacuum g... Login to read more.