I have a V6 California model that has been a big headache. Until recently it ran well. Some days better than others.
The check engine light began to come on displaying a 71 error code(specific to California models). I assume this is due to all those stupid vacuum lines.
Now, when started cold the engine seams to run smoothly but smells like it's burning rich. When the engine warms it seams to run very lean with no exhaust smell. Also, when revved up it hesitates and may even stall.
I checked all hoses for leaks. Two are capped off going nowhere.
I had installed a remanufactured engine last year. Was very careful in numbering and routing all vacuum lines entering the air intake chamber. However, several lines enter a single sensor does this order matter? Could my EGR be bad?
HELP!!!