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2025
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Prius Plug-In Hybrid XSE
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Repair and Diagnosis
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Engine Performance
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Engine Control Systems
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Engine Control System (Service Specifications)
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M20A-FXS Engine Control
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Service Data [12/2022 - ]
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Service Data [12/2022 - ]
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Ignition System
Ignition System
IGNITION SYSTEM
Standard Insulation Resistance
Spark plug (terminal part) - Body ground
10 MΩ or higher
Spark Plug Type
DENSO made
FC16HR-Q8
Maximum Electrode Gap
for Used Spark Plug
1.2 mm (0.0472 in.)
Standard Electrode Gap
for New Spark Plug
0.7 to 0.8 mm (0.0276 to 0.0315 in.)