Hey guys, im running lean according to the codes im pulling. It's telling me that at times there is no response from the Sensor 1, Bank 1 O2 sensor, or that it is delayed. Just need to know which one this is so i can replace it. Im assuming that its the drivers side directly after the manifold.

Its about time to replace the fuel filter and the spark plugs so i think im going to switch out that O2 sensor as well and see if my hesitation as well as missing goes away

 

Post the EXACT code(s) you are getting.

There are several codes that cause plenty of wasted O2 sensors due to faulty diagnosis.

Steve