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.
2008 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE
Engine Control System - DTCS P1148 To P2A03 (Qr25DE)
- DTC P1148, P1168 Closed Loop Control
- DTC P1217 Engine Over Temperature
- DTC P1225 TP Sensor
- DTC P1226 TP Sensor
- DTC P1421 Cold Start Control
- DTC P1564 ASCD Steering Switch
- DTC P1572 ASCD Brake Switch
- DTC P1574 ASCD Vehicle Speed Sensor
- DTC P1715 Input Speed Sensor (Primary Speed Sensor)
- DTC P1805 Brake Switch
- DTC P2100, P2103 Throttle Control Motor Relay
- DTC P2101 Electric Throttle Control Function
- DTC P2118 Throttle Control Motor
- DTC P2119 Electric Throttle Control Actuator
- DTC P2122, P2123 App Sensor
- DTC P2127, P2128 App Sensor
- DTC P2135 TP Sensor
- DTC P2138 App Sensor
- DTC P2A00, P2A03 A/F Sensor 1
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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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