Occasionally, the Check Engine Light may come on, this can be related to a failed air flow sensor. This type of fault is commonly repaired by cleaning or replacing the air flow sensor.
Average mileage: 141,648 (59,000–200,000)
34 people reported this problem
The engine light turned on repeatedly following a 'reset' by my mechanic. He suggested using higher-grade gasoline with lower ethanol content, which seems to have done the trick over the past 2,000 miles or so.
New cats and sensors didn't help when the engine light threw a code for catalytic converters. Toyota wants $2800 for their cats, and had no advice when I emailed them. Putting on a simulator now in order to pass smog, RIDICULOUS!
MIL Light came on, hesitation and stall with no restart, traced code with OB2Scan tool and AFM MIL light code. Remove and replaced AFM, and car restarted.