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The CH-47976 Afit is a previously essential Tool for GM tier 1,2,3,4 dealers in the USA and all tiered dealers in Canada. The Afit was originally launched to dealers to address two current issues at that time. Improve the accuracy of diagnostics for the new AFIM (Air Fuel Imbalance Monitor) System due to increasing CARB requirements, and improve the accuracy of current service procedures to reduce misdiagnosis of current Fuel Systems to eliminate needless replacement of Injectors that upon analysis by GM suppliers were found to be good, CH-47976-500A is a kit of 2 Adapter Harness Cables (CH-47976-501 and CH-47976-502A) and a Drive/measurement Test Adapter unit that connect to the CH-47976 for Testing of I4, V6 and V8 SIDI vehicles. Storage case also included.
