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Tuning Articles

2 Step Rev Limiter Adjuster Module

Rev Limiters including 2 Step Tuning

lap top stand alone tuning solutions

5 Steps to EFI Tuning

Air Intake Temperature Temp Sensor Manifold

Air Intake Temperature Sensor Tuning

Cut Away Fuel Injector Batch Vs Sequential Fuel Injection

Batch vs Sequential Fuel Injection

Boost By Gear batmo compressor turbocharger turbo

How to Set-up Boost By Gear Tuning

Closed Loop Tuning Tables AFR Control


How to tune closed loop for ideal AFR ratio's under part thottle

Coolant Temp Temperature Sensor

Adjusting + Tuning Coolant Temp based fuel trims

How to make Det Detonation Cans

How to make your own Detionation (det) Cans

E85 Pump Gas Tuning Instructions

Tuning basics for E85 Fuel equipped vehicles

GM Map Sensors Tuning Map Sensor

EFI electronic Basics EFI 101, a good place to start

Wide Band AFR Air Fuel Sensor

EGT vs AFR Tuning

Maf Sensor Comparison Tuning

Map Vs Maf Sensor and Tuning

Engine Start Tuning Warm Up Map Electromotive Tec3 4 R

Engine Start and Warm up Enrichment Tuning

Water Meth Injection Tuning vs E85

E85 + Race Gas vs Water Meth Injection Tuning

Stand Alone ECU Vs Picggyback Computer Tuning Wiring Sensors

Stand Alone Vs. Piggyback ECU (pro's and con's)

AEM FAIL SAFE gauge built in boost gauge o2 sensor Wiring

Fail Safe Air/fuel Gauge (AN ENGINE LIFE SAVER)


As technology has changed over the years with the combustion motor, there has been no bigger change than the use of Electronic Fuel Injection (EFI). While it may seem difficult to understand, the articles above will help you break down each component that makes up an EFI system. Everything from the ECU to all of the ECU sensors, to how to tune and control the system will be covered to make sure that you get a good foundation built on understanding modern EFI Systems.

If right now you are saying to yourself that your not much of a computer person, don't worry, while tuning an EFI set up does require the use of a computer, most manufacturers understand that we are car guys, not computer guys. Because of this most aftermarket car manufactures do a great job making the set-ups very user friendly.

While the articles above don't necessarily get into the particulars of tuning any one brand of ECU, they do give you the theory, understanding, and background involved in being able to tune any ECU out there. Also, there are software differences between each manufacturer, but the way the engine is tuned and its behavior and feedback from the ECU sensors are the same. If you understand the basics of EFI tuning and how it works, then you will be able to tune any car once you understand that ECU’s software. Check back often for new articles and updates.

***Remember*** to check for other relevant information in the columns and article tables.




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