#enginetuning PHOENIX, AZ

Engine Tuning Service


Engine tuning is one of the most important upgrades you can perform when you’re looking to improve the performance of your vehicle. When car manufacturers develop the engine parameters used by the computer to control the fuel, air, and exhaust timing of your vehicle, they limited by regulations that require them to stay within specific limits. Additionally, they program their engine control models with the understanding that the vehicle will be operating in a wide range of climates, driving habits, and driver preferences. As a result, there is often a significant amount of potential engine performance that is left on the table. An engine control module tune will help you unleash that additional horsepower and torque.

Another factor that makes an engine tune an important upgrade to include in your performance upgrade package is, engines are finely tuned by the manufacturer to exact specifications of the parts installed when the car is assembled. Any time you swap out or change factory parts to aftermarket performance parts, it’s critical that you update the parameters the engine’s computer uses to calculate air/fuel ratios and ignition timing. If you don’t tune your vehicle after swapping out factory parts for performance parts, you not only leave potential power on the table and ruin your fuel mileage, you risk serious irreversible damage to your engine.

The engine control module also referred to as the ECM or ECU, is responsible for calculating the amount of fuel to squirt into the piston chamber to produce the ideal combustion required for a motor to produce power. In addition to fuel calculations, the ECU controls the timing of the ignition spark produced by the spark plugs to ignite the air/fuel mixture in the combustion chamber. In order to make these calculations, the ECM relies on a series of mathematical tables combined with data feedback it receives from the oxygen sensors which measure the motors exhaust from the combustion process and mass air flow sensors which measure the amount of air that comes into the motor through the intake system.

When you modify parts like the intake system with a cold air intake, the exhaust with a header system or performance exhaust, or add a forced air induction system like a supercharger, the data stored in the mathematical tables of the ECU are no longer accurate. This confuses the engine control module as it expects to read certain fuel richness from the oxygen sensors in the exhaust based on it’s anticipated calculations. When the engine control module see’s inaccurate reads, it will compensate by using more or less fuel than is necessary which results in rich and lean scenarios which will damage parts like your catalytic converter, pistons, and engine block and as results in an underperforming engine that wastes fuel and reduces power.