Seeking advice - I've searched and read through all the of related threads and most CEL code 25 issues seem to have been resolved by replacing O2 sensors.
After having my headgasket done, including full cleaning of intake and injectors along with new plugs, replacing all vacuum lines, new air intake hose, disti cap, and wires, I've been throwing code 25. The engine idles fine, runs smooth, etc.
This weekend, I did the full PAIR delete and replaced my non OEM O2 sensors with OEM ones (I actually found an unused set for the OBD1) in the exhaust manifold. I drove about 25 miles after replacing the O2 sensors and thought everything was fine until this afternoon after I filled my gas tank and it threw a code 25 on the way home.
I have not done the full test in the FSM, which is likely the next step, but was am seeking any advice on what to check: VAF, something else?
I welcome any input
After having my headgasket done, including full cleaning of intake and injectors along with new plugs, replacing all vacuum lines, new air intake hose, disti cap, and wires, I've been throwing code 25. The engine idles fine, runs smooth, etc.
This weekend, I did the full PAIR delete and replaced my non OEM O2 sensors with OEM ones (I actually found an unused set for the OBD1) in the exhaust manifold. I drove about 25 miles after replacing the O2 sensors and thought everything was fine until this afternoon after I filled my gas tank and it threw a code 25 on the way home.
I have not done the full test in the FSM, which is likely the next step, but was am seeking any advice on what to check: VAF, something else?
I welcome any input