dlbehrns

Turned a corner and my CEL came on. What I read is: This code means that the heated circuit in the oxygen sensor on bank 1 decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0141. See also: P0135 (Bank 1, Sensor 1). My Scanner and book for PO141 says Bank 1 Sensor 2. My question is, which side is bank one, drivers or passengers? And, I would assume that Sensor 2 is the one after the primary cat? My MAF only has about 25K on it. Any body had this problem?