05 pathfinder engine shakes after changing spark plug.
Had service light on.
Smog check place said their diagnostic shows the cat was getting excess fuel air that was not burning in the engine.
Repair shop replaced 2 O2 censors and service light is still on.
I replaced the spark plugs today.
Now the engine shakes/noisier about 15% more than usual.
Any thoughts?
Some people say coils, any way of checking which ones?
Thank you for any feedbacks.
Had service light on.
Smog check place said their diagnostic shows the cat was getting excess fuel air that was not burning in the engine.
Repair shop replaced 2 O2 censors and service light is still on.
I replaced the spark plugs today.
Now the engine shakes/noisier about 15% more than usual.
Any thoughts?
Some people say coils, any way of checking which ones?
Thank you for any feedbacks.