Hello scotty I don't missed any of your videos keep on going you are the best I have learned a lot from your videos. I am writing to you because I have corolla 2010 with 87,000 with a manual transmission with no obd codes it idles erratically my mechanic told me that the car has the shortterm fuel trim between 0 and 1% but the long term is at -16% he change the spark plug and he also clean the maf airflow sensor and the throttle body and changed the air filter but the car doesn't improve it remains at that range. I would appreciate any help. Thanks
