Here's why:
* Engine Misfires: The engine's computer (PCM) is precisely calibrated to inject the correct amount of fuel into each cylinder for optimal combustion. Disabling injectors will create a severely lean air/fuel mixture in some cylinders, leading to misfires. This will cause rough running, reduced power, and potentially catastrophic engine damage.
* Catalyst Damage: Lean misfires significantly increase the temperature of the catalytic converter, potentially causing it to overheat and fail prematurely. This is an expensive repair.
* Oxygen Sensor Problems: The oxygen sensors monitor the exhaust gases to help the computer adjust the air/fuel mixture. Disabling injectors will throw off the readings, leading to inaccurate adjustments and further damaging the engine.
* Check Engine Light: The Check Engine light will illuminate, indicating a serious problem. Ignoring this will only worsen the situation.
While some modifications can improve fuel economy, disabling fuel injectors is not one of them. A far better approach to improving your Tahoe's gas mileage involves focusing on proper maintenance, such as:
* Regular tune-ups: Ensure your air filter, spark plugs, and other components are in good condition.
* Tire pressure: Maintaining proper tire inflation significantly impacts fuel efficiency.
* Driving habits: Avoid aggressive acceleration and braking. Maintain a consistent speed when possible.
* Weight reduction: Remove any unnecessary weight from the vehicle.
If you're concerned about your gas mileage, consult a qualified mechanic to diagnose any underlying issues that might be contributing to poor fuel economy. They can identify problems and recommend appropriate solutions without risking damage to your engine.
