Mastertech Fuel Injector Service

04/02/2026

This is what happens when the combustion seal is not sized properly or if you use any type of l**e on the combustion seal during install. Major e leak and damaged injector

11/05/2025

This is what happens when the proper tools are not used
Bent rail and 4 bemt injectors

05/05/2025

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.

03/20/2025

Such a vital service on newer engines

03/20/2025

Injector cleaning solves so many running problems especially on the newer GDI engines.

01/28/2025

It is so important to use the proper tools when removing GDI injectors. Customer damaged all 8 injectors by prying them out

02/05/2024

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✨

02/05/2024

Beware of using the high pressure injector cleaning systems to get your injectors clean. The only proper way to clean them is too pull them out and have them cleaned.

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✨

01/12/2023

Great info

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.

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

04/25/2022

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

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