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Lexus (and Toyotas too) Air Flow Meters with K&N air filters
Posted to Technical Tips Forum on 11/25/2003 19 Replies

Greetings all,

Had a 1992 Lexus SC400 in for a MIL. We found code 31 (Air flow meter malfunction) set in the PCM. These Karman-Vortex Air Flow Meters are pretty bulletproof and VERY expensive. We scanned the air flow meter and found the freq... Login to read more.

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