2000 Avalon I posted a couple of weeks ago and got some good advice from qslm and Ray. Anyhow, my Avalon's "check engine" light was on. The Autozone diagnostic indicated a too lean condition (you were right, qslm; it was, indeed, code PO171). Anyhow, as suggested, I took out the MAV sensor. It looked fine but I hit it with a little air and gave the platinm wire a soft brushing. I put it back together and the light is now off. Is it fixed? Who knows?
Now, I have a question re the MAV diagnostic suggested in the Haynes manual. It says to read the voltage between connector #4 and ground. The manual indicates that the voltage should be 9 to 14v. I am reading 4.25 volts. Is this normal? Thanks. jor