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Fuel injectors are controlled by the onboard computer to meter and atomize the correct amount of fuel entering each cylinder in the case of the PFI and the correct amount of fuel entering the intake manifold in the case of the TBI, under all operating conditions. Symptoms of failure include poor starting, engine surging, check engine light, and or no start conditions. Recommended service should be performed every 25,000 - 35,000 miles and consists of cleaning or replacing with new injectors. Walker Products began supplying the fuel system and engine management needs of the automotive industry since 1946. As an ISO 9001:2015/TS16949 certified company, we are committed to supplying the highest quality products. Vehicle Application: 2009-2012 Mazda 6 2.5L I4, 2010-2014 Mazda 3 2.5L I4, 2012-2015 Mazda 5 2.5L I4, 2010-2012 Mazda CX-7 2.5L I4
Controlled by the onboard computer
Meters and atomizes the correct amount of fuel entering each cylinder in the case of the PFI under all operating conditions
Meters and atomizes the correct amount of fuel entering the intake manifold in the case of the TBI under all operating conditions
Symptoms of failure include poor starting, engine surging, check engine light, and or no start conditions
Recommended service should be performed every 25,000 - 35,000 miles and consists of cleaning or replacing with new injectors
![Walker Products 550-2080 (OE) Fuel Injector Replacement - Compatible with [Vehicle Models] - High Performance Fuel Injection System - Perfect for Engine Tune-Ups & Fuel Efficiency Improvement](https://hkk-1257028036.cos.ap-hongkong.myqcloud.com/images/1sw6owvsp93zmrs.jpg?imageMogr2/thumbnail/400x400/pad/1)
