Mastertech Fuel Injector Service

Good information if you are trying to find a running problem.

DID YOU KNOW? 🤔

The GDI System has two running modes: Stratified & Homogeneous

⚫️Stratified Charge Running Mode:
This mode is the economical combustion cycle, in some systems, the Air/Fuel ratio can be as high as 65 to 1. In this mode, the injector delivers a minimum amount of fuel into the combustion chamber, just before the piston reaches the top and before the plug fires. This mode is used at idle and light throttle settings when the car is driven slowly.

🟢Homogeneous Running Mode:
This mode is what would be called a normal combustion cycle, with an Air to Fuel ratio of 25 to 1. In this mode, the injector delivers a normal amount of fuel into the combustion chamber. This gives the engine the required performance as the car goes faster.

⚪️The Engine Management System determines when the system needs to switch between the Stratified Charge Mode and the Homogeneous Running Mode.

A common theme when it comes to faulty injectors is the breakdown of filter baskets within the injector due to the use of harsh chemicals in an attempt to clean them! ❌

It can cause poor spray patterns, leaks or even cause the injector to get stuck open. These problems are common but easily avoidable through servicing!✅

Take care of your injectors and they’ll take care of your vehicle’s performance✨

Even at 60 years old this is the best film I have seen on what it takes to build a car.

Up From Clay: A 1959 Fisher Body Film See the auto body production process up close and in detail in this 1959 Fisher Body movie entitled Up From Clay.