WHAT IS A MASS AIR FLOW SENSOR? The mass air flow sensor (MAF) is a key component of the electronic fuel injection system in a car. It is located between the air filter and the engine's intake manifold. In some cars, the intake air temperature (IAT) sensor is built into the mass air flow sensor. However, there are various types of air flow sensors and all require different maintenance. Digital sensors send a frequency output, while analog mass air flow sensors produce a variable voltage output. Both outputs are sent to the engine control module to help regulate air-fuel mixture in the car's automatic transmission system. WHAT DOES IT DO? Mass air flow sensors measure the air mass flowing into the engine intake. This is important for calculating the amount of fuel to add to achieve the proper air-fuel ration (AFR), Ideal AFR is 14.7:1 (14.7 lb of air to 1.0 lb. of gasoline), but AFR can vary. Acceleration requires AFR of up to 12:1, while cruising requires levels as low as 22:1. A faulty mass air flow sensor can make it difficult or impossible for the engine control module (ECM) to calculate fuel injection correctly. This can cause a myriad of other problems for your vehicle. Air Flow Sensor OE: 28164-27800 2816427800 28164 27800 Application : 28164-27800 2816427800 28164 27800 for Hyundai Santa Fe Sonata Tucson Packing and Shipping Selling Units: Single item Engine Model: ALL , Product Name:Mass Air Flow Sensor for Hyundai 28164-27800 Single gross weight: , Size: Standard Lead time: Quantity(pieces) 10 - 100 101 - 200 >1000 Inventory In stock Within 3 working days To be negotiated Company Profile FAQ Q1: Are you trading company or manufacturer? A: We are factory. Q2: How long is your production time? A: Generally it is 5-10 days if the goods are in stock. or it is 30-40 days if the goods are not in stock, it is according to quantity. Q3: Do you provide samples? is it free or extra? A: Yes, we could offer the sample for speed sensor with charge and return in order. Q4: What is your terms of payment? A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment. Q5: What is your quality standard? A: We based on OE quality and test one by one in production line and also before shipment. Q6: Can you produce according to sample or customize product? A: Yes. We have a professional technical team with pre-sale and after sale service to perform your request. Q7: How do you make our business long-term and good relationship? A: We keep good quality and competitive price to ensure our customers benefit ; We respect every customer as our friend and we sincerely do business and make friends with them. Ratings & Reviews