Thermal Protection
When the DME reduces power output because temperatures have exceeded safe thresholds. Manifests as throttle closure or reduced boost target.
Why it matters
Thermal protection is the ECU protecting your engine. If it activates, your cooling system is not keeping up with the heat load.
What to look for
Reduced boost target, throttle closure at 100% pedal, or power drops during a session. Check IAT, coolant, and oil temps.
Related terms
When repeated hard use causes temperatures to build up faster than the cooling system can dissipate.
The temperature of air entering the engine. Hotter air = less dense = less power and more knock risk.
Engine coolant temperature. Monitors the health of the cooling system under load.
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