Hi,
The smell you mentioned leads me to think either we are getting way too much fuel to the engine, or the catalytic converter is plugged. By chance, are there any strange sounds from the exhaust? If you remove the upstream oxygen sensor, does it run better?
Next, the new code is usually the result of either a wiring issue between the ECM and throttle control motor or the throttle control actuator. See pic 1 below.
Have you already checked or replaced either of them?
Let me know.
Joe
See pic below.
Image (Click to make bigger)
Wednesday, December 21st, 2022 AT 8:48 PM