Is an american retailer of aftermarket automotive parts and accessories, the largest in the united states. Founded in 1979, autozone has 7,140 stores across the. Webthe map sensor’s function is to measure manifold pressure and send that data to the engine computer, which calculates air density and air mass flow rate to adjust fuel. Find parts for your car, truck, or suv online or at one of over. Click here to find the autozone store near you. Each store carries an extensive product line for cars, sport utility vehicles, vans…