Introduction to Aftermarket Intakes
Aftermarket intakes are popular modifications for improving engine performance by increasing airflow and enhancing combustion efficiency. However, installing an aftermarket intake can present challenges and potential issues. Being aware of these common problems can help ensure a successful installation and optimal performance.
Common Issues with Aftermarket Intake Installation
1. Fitment Issues
What It Is: Difficulty in fitting the aftermarket intake correctly into the engine bay. Why It Happens: Variations in engine bay layout, interference with other components, or poor design. Solution: Ensure compatibility with your vehicle model, follow installation instructions carefully, and make necessary adjustments.
2. Check Engine Light (CEL)
What It Is: The CEL may illuminate after installing an aftermarket intake. Why It Happens: Changes in airflow can trigger the mass airflow (MAF) sensor, causing the ECU to detect an anomaly. Solution: Use a high-quality intake designed for your vehicle, and consider an ECU reflash or tune to adjust for the new intake.
3. Hydrolock
What It Is: Water entering the intake system and causing engine damage. Why It Happens: Cold air intakes that draw air from low locations are more susceptible to water ingestion. Solution: Install a bypass valve or water shield, or choose a short ram intake to reduce the risk.
4. Heat Soak
What It Is: The intake air temperature increases due to heat absorption from the engine bay. Why It Happens: Short ram intakes draw air from inside the engine bay, where temperatures are higher. Solution: Use a heat shield or thermal wrap to insulate the intake and reduce heat absorption.
5. Poor Idle or Stalling
What It Is: Engine idle issues or stalling after installation. Why It Happens: Inconsistent airflow or incorrect installation affecting the MAF sensor readings. Solution: Ensure all connections are secure, the MAF sensor is clean, and the intake is properly installed.
6. Inconsistent Performance Gains
What It Is: Expected performance improvements are not achieved. Why It Happens: The intake system may not be optimized for your specific vehicle or other factors like exhaust restrictions. Solution: Pair the intake with other supporting modifications and consider professional tuning.
Case Studies and Real-World Examples
A 2018 Honda Civic with an aftermarket cold air intake experienced a CEL due to MAF sensor readings. The owner resolved this by cleaning the sensor and performing an ECU reflash. Installation took about 2 hours with basic tools.
A 2017 Subaru WRX with a short ram intake encountered heat soak issues. The owner installed a heat shield and thermal wrap, significantly reducing intake air temperatures. Installation and adjustments took about 3 hours with basic tools.
Popular Brands
- K&N: Known for high-quality, reusable drop-in filters. K&N at JM Auto Racing
- aFe Power: Offers performance air filters with advanced filtration technology. aFe Power at JM Auto Racing
- AEM: Provides high-flow air filters with excellent filtration properties. AEM at JM Auto Racing
- Injen: Known for high-performance metal intake systems. Injen at JM Auto Racing
Conclusion
Installing an aftermarket intake can significantly improve your vehicle’s performance, but it’s essential to be aware of common issues and take appropriate measures to address them. Ensuring proper fitment, avoiding hydrolock, preventing heat soak, and addressing CEL and idle issues will help you achieve the best results from your intake upgrade. With high-quality options available from various brands, there’s an aftermarket intake solution for every vehicle and performance need.