A mechanic cannot diagnose a running lean error on a 2007 Toyota Yaris because the fuel line lacks a Schrader valve, making fuel pressure testing require specialized connectors, and he is unsure if a

A mechanic cannot diagnose a running lean error on a 2007 Toyota Yaris because the fuel line lacks a Schrader valve, making fuel pressure testing require specialized connectors, and he is unsure if a third-party gauge kit will work with the Toyota/Denso connectors.