Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
External Pages
2009 Nissan-Datsun Sentra SE-R Service Manual 's manual. Be very cautious using repair info from here because these pages may not apply to your vehicle. Different variant/trim Section 1 (Engine Mechanical (MR20DE)) Section 2 (Engine Lubrication System (MR20DE)) Section 3 (Engine Cooling System (MR20DE)) Section 4 (Clutch) Section 5 (Manual Transmission (RS6F94R)) Section 6 (Manual Transmission (RS6F52A)) Section 7 (Manual Transmission (RS6F52H)) Section 8 (Engine Control System - Introduction (MR20DE-CALIFORNIA)) Section 9 (Engine Control System - DTCS U0101 To P0133 (MR20DE-CALIFORNIA)) Section 10 (Engine Control System - DTCS P0137 To P0442 (MR20DE-CALIFORNIA)) Section 11 (Engine Control System - DTCS P0443 To P0607 (MR20DE-CALIFORNIA)) Section 12 (Engine Control System - DTCS P0643 To P2A00 (MR20DE-CALIFORNIA)) Section 13 (Engine Control System - Component Testing (MR20DE-CALIFORNIA)) Section 14 (Engine Control System - Introduction (MR20DE Except CALIFORNIA)) Section 15 (Engine Control System - DTCS U0101 To P0139 (MR20DE Except CALIFORNIA)) Section 16 (Engine Control System - DTCS P0171 To P0500 (MR20DE Except CALIFORNIA)) Section 17 (Engine Control System - DTCS P0506 To P2A00 (MR20DE Except CALIFORNIA)) Section 18 (Engine Control System - Component Testing (MR20DE Except CALIFORNIA))
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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