설명
Outlander PHEV Fuel Pulse Width Explained (Normal vs Charge Mode)
Ever noticed your fuel injector pulse width change depending on drive mode? Here’s what’s really happening inside the engine
🔹 Normal Mode: ~3.6 ms
🔹 Charge Mode: ~5.4 ms
💡 What is Fuel Pulse Width?
It’s the amount of time the injector stays open to spray fuel into the engine. Measured in milliseconds (ms), this directly controls how much fuel is delivered.
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⚙️ Why the difference?
👉 In Normal Mode (3.6 ms)
• Engine runs efficiently for driving
• Lower fuel demand
• Optimized for economy and smooth cruising
• Hybrid system prioritizes EV usage
👉 In Charge Mode (5.4 ms)
• Engine works harder to charge the battery + move the car
• Higher fuel demand → longer injector opening
• More load = more fuel needed
• You’ll notice higher RPM and fuel consumption
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🔥 What this tells us:
• The ECU increases fuel delivery when extra power is required
• Charge Mode is basically turning your engine into a generator + drivetrain power source at the same time
• That’s why injector pulse jumps from 3.6 ms → 5.4 ms
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📊 Real Insight:
A jump of ~50% in pulse width means:
• Significant increase in engine load
• More fuel burn = faster battery charging
• Less efficiency compared to Normal Mode
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✅ Conclusion:
Normal Mode = Efficiency
Charge Mode = Performance + Battery Charging (at the cost of fuel)
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🔧 If you’re using tools like MUT-3, this is a great parameter to monitor engine load and fueling behavior in real time.
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