Review on ACDelco 214 1091 Original Equipment Canister: Superior Quality and Specific Fit for Optimal Performance by Steven Saric

Very easy to assemble. It is located between the differential and the gas tank. Bought ACDelco 214-646 AND ACDelco 214-1091 hoping to fix engine code P0446 (EVAP ventilation control circuit). I installed both items and cleared the check engine codes. The check engine light returned after driving about 200 miles with the ACDelco 214-646 and ACDelco 214-1091 installed. Same code P0446. I ordered a new gas cap. If the gas cap does not work, then the activated carbon filter. *Update 01/06/2020* Purpose was to repair engine code P0446 (EVAP System Purge Control Circuit): I purchased and installed the following parts in order: 1. ACDelco 214-646 GM Original Equipment Vapor Canister Purge Valve2. ACDelco 214-1091 GM Original Equipment Vapor Canister Purge Valve -> Same P0446 check engine code came back after about 200 miles3. ACDelco 215-407 GM Original Equipment Vapor Canister4. ACDelco MU1615 GM OE fuel pump and level sensor module with gasket, float and wiring harness -> code cleared, driven 80 miles, no code yet.