Description: Intake Air Flow. Mass Air Flow Sensor - Repair or Replace If the mass air flow sensor or MAF meter in your Toyota is failing, you???ll notice in addition to the check Engine light that your Engine may crank and not start, or that the Engine Speed surges at idle.

Description: Knock Sensor - Repair or Replace A failed Knock Sensor will often have no noticeable symptoms beyond a check Engine light or Engine ping or knock, but it does cause your Toyota to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Toyota genuine parts.