tacogrint
Member
Having a minor (hopefully) issue with my 06 Prerunner TRD V6. Bought the truck May of 2019 with 124k miles, previous owners took meticulous care of this truck. Drove it up to Virginia and back with no problem at all this past fall. One day my check engine light comes on, with no noticeable change in how it runs/sounds/feels. Cleaned the air intake filter, took it to autozone and the codes read P0174 and P0171, both banks reading lean. Take it to a local reputable family-owned mechanic, he runs the sames codes...but says he's getting contradicting readings that they are showing too lean and too rich(?). Ultimately he found a deteriorated MAF Sensor o-ring, which was replaced and he cleaned the throttle body. The code was cleared and didn't return. After about one week of driving a maximum of 40 mph, I get on the highway...and it seemed as though as soon as I got up to 60mph the CEL comes back on....any thoughts?
