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.

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HOMESERVICE MANUALSNISSAN-DATSUN2003MAXIMA SE, STANDARD, RS6F51AREPAIR AND DIAGNOSISENGINE PERFORMANCEAPPLICATIONENGINE INTRODUCTIONMODEL COVERAGENOTES

2003 Nissan-Datsun Maxima SE, Standard, RS6F51A

Model Coverage: Notes

2003 Nissan-Datsun Maxima SE, Standard, RS6F51ASECTION Notes

MODEL COVERAGE

MODEL

ENGINE ⁽¹⁾

ENGINE ID ⁽²⁾

FUEL SYSTEM ⁽³⁾

IGNITION SYSTEM

Altima

2.5L 4-Cyl. (QR25DE)

SFI

EI ⁽⁴⁾

.....

3.5 V6 (VQ35DE)

SFI

EI ⁽⁴⁾

Frontier

2.4L 4-Cyl. (KA24DE)

SFI

DI ⁽⁵⁾

.....

3.3L V6 (VG33E)

SFI

DI ⁽⁵⁾

.....

3.3L V6 (VG33ER)

SFI

DI ⁽⁵⁾

Maxima

3.5L V6 (VQ35DE)

SFI

EI ⁽⁴⁾

Murano

3.5L V6 (VQ35DE)

SFI

EI ⁽⁴⁾

Pathfinder

3.5L V6 (VQ35DE)

SFI

EI ⁽⁴⁾

Sentra

1.8L 4-Cyl. (QG18DE)

SFI

EI ⁽⁴⁾

.....

2.5L 4-Cyl. (QR25DE)

SFI

EI ⁽⁴⁾

Xterra

2.4L 4-Cyl. (KA24DE)

SFI

DI ⁽⁵⁾

.....

3.3L V6 (VG33E)

SFI

DI ⁽⁵⁾

.....

3.3L V6 (VG33ER)

SFI

DI ⁽⁵⁾

350Z

3.5L (VQ35DE)

SFI

EI ⁽⁴⁾

⁽¹⁾	Engine code is located on top rear of engine block, on flange. See ENGINE CODE LOCATION .

⁽²⁾	Engine identification code is 4th digit of Vehicle Identification Number (VIN).

⁽³⁾	Equipped with multiport fuel injection system that operates in simultaneous mode (starting and fail-safe mode) and sequential mode (engine running).

⁽⁴⁾	Models use a distributorless ignition system using a crankshaft position sensor and one ignition coil for each spark plug. This system may also be referred to as Electronic Ignition (EI).

⁽⁵⁾	This system may also be referred to as Distributor Ignition (DI).

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:

• 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.