Review on 🚗 Dorman 911-010 Engine Air Intake Coupling: Perfect Fit for Cadillac, Oldsmobile, Pontiac Models by Dave Johnson

If you are getting codes P0171 and P0174, do not begin replacing parts as required by dealerships and parts stores. Check this item (boat) by idling the engine and spraying the carburetor. cleaner underneath. If the engine stalls while spraying, you have a cracked dust boot and replacing the dust boot will solve your problem without any other items that are recommended to you. A lot of work, but worth it. Manufactured to higher standards than GM's, this product will outlast your Northstar engine by several years.