P0191 Check Engine Trouble Code - How to Diagnose the Problem

This video shows you how to properly diagnose a fuel pump issue for a vehicle with a P0191 Trouble Code. Airtex is committed to providing the most up-to-date, in-depth fuel pump replacement information that professional technicians need to diagnose, repair and install today's complex fuel delivery systems. Airtex is the only U.S. automotive aftermarket manufacturer that designs and builds electrical AND mechanical fuel delivery system components, including modular reservoir assemblies, electric fuel pumps, mechanical fuel pumps and in-tank sender and hanger assemblies, for a full range of car, truck, fleet and specialty vehicles.