Checked MAF sensor resistance (terminals 4 & 5) and resistance is within 2.2 -2.7 K ohm range at 68F. Sensor inside looks clean. MAF connector (terminal 4) has 11.8V, so everything appears to be OK. Could ground be open near MAF sensor?
Removed O2 sensor (bank 1) and it looks normal (small amount of gray carbon deposits on a louvered steel cylinder that protects sensor). Didn't tested yet. Both O2 and air sensors (before and after cat) were replaced in 2008.
I am open to your suggestions. I do not have OBD II scan tool and read codes at AutoZone. Thanks.
have the same problem?
Saturday, December 5th, 2009 AT 5:41 PM