If a car dealership has a lean on your car and you have not made the required payments they may repossess your car.
Yes, it can. So can many other things - check for codes in ecm.
check for vacuum leak, if none, your car isn't getting enough fuel
Yes you can. It's up you if you'll gonna sell it to someone else and after it was successfully sold your car, you should return the money to the other buyer of your car who has a lean on your car.
Check engine light may illuminate and related codes may show a lean condition.
can i have the car picked up if im the lean holder and they dont pay
if the car had a lean on it the lean holder proble told them to an they don't have to tell u
If the car is have issues accelerating it may be running to lean. Ensure the engine is using the proper air to fuel mixture so the car will not run lean.
Pay off the debt.
P0171 System too Lean (Bank 1)
Yes.
Look for a vacuum leak.