After a dyno tune, my black car runs great at high speeds, but I’m experiencing some idling and street driveability issues. Let’s address these problems and fine-tune the settings for optimal performance.
Idle RPM Issues After Cold Start
Currently, the engine RPM doesn’t settle below 1000 after a few seconds and runs between 1500-2000 RPM until fully warmed up, which takes about 20-30 minutes of driving. The Idle Target graph shows a high target RPM of 1500 for an extended period.
Will adjusting the target RPM on this graph help lower the idle RPM? What RPM values are recommended for different coolant temperatures (CLT)?
PID Control and Ignition Control
The tuner enabled Ignition Control but not PID Control. Assuming the Idle Target RPM table is active, should PID Control also be enabled? What are the benefits of using both?
Non-Linear Throttle Response
The throttle response isn’t smooth during street driving. Between 2000-4000 RPM, the car accelerates abruptly even with slight throttle input. This is especially noticeable when the engine is cold. Above 4000 RPM, the response feels sluggish, making rev matching difficult. Which parameters within ECUMaster should be adjusted for smoother throttle response?
High-Pitched Noise After Engine Shut Off
The EMU Black emits a high-pitched noise for an extended period after the engine is turned off. Is this normal behavior for the EMU Black? What could be causing this noise?
This detailed analysis of these tuning issues seeks to optimize the performance and driveability of this black car. Addressing these concerns will ensure a smoother, more responsive, and enjoyable driving experience.
