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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSNISSAN-DATSUN2009SENTRA L4-2.0L (MR20DE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMIGNITION TIMINGTESTING AND INSPECTIONFOR CALIFORNIA
2009 Nissan-Datsun Sentra L4-2.0L (MR20DE)
For California
2009 Nissan-Datsun Sentra L4-2.0L (MR20DE)SECTION For California
BASIC SERVICE PROCEDURE
Idle Speed and Ignition Timing Check
IDLE SPEED
With CONSULT-III
Check idle speed in "DATA MONITOR" mode with CONSULT-III.
With GST
Check idle speed in Service $01 with GST.
IGNITION TIMING
Any of following two methods may be used.
Method A
1. Attach timing light to loop wire (1) as shown.
- Arrow Indicates Vehicle front
2. Check ignition timing.
- Timing indicator (1)
Method B
1. Remove No. 4 ignition coil (1).
- Arrow Indicates Vehicle front
2. Connect No. 4 ignition coil (1) and No. 4 spark plug with suitable high-tension wire (A) as shown, and attach timing light clamp (B) to this wire.
- Arrow Indicates Vehicle front
3. Check ignition timing.
- Timing indicator (1)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.