The 2009 Altima came with two engines. The 2.5-liter four-cylinder uses four fuel injectors, while the 3.5-liter V6 uses six injectors.
Injector counts by engine
The following breakdown shows injector counts for the two engines offered in the 2009 Altima.
- 2.5L four-cylinder (QR25DE) — 4 fuel injectors
- 3.5L V6 (VQ35DE) — 6 fuel injectors
Conclusion: In the 2009 Altima, there is one injector per cylinder, resulting in 4 injectors for the four-cylinder version and 6 for the V6 version.
Maintenance notes
Most 2009 Altimas use port fuel injection, with injectors located at each cylinder's intake port. If you’re diagnosing fuel-related issues, verify the engine code and configuration for your specific vehicle.
Summary
Summary: The number of fuel injectors in a 2009 Nissan Altima depends on the engine: 4 injectors on the 2.5L four-cylinder, 6 injectors on the 3.5L V6. Confirm your exact configuration by checking the VIN or engine code if needed.
How much are the fuel injectors for a Nissan Altima?
The average cost for a Nissan Altima Fuel Injector Replacement is between $1,068 and $1,353. Labor costs are estimated between $254 and $373 while parts are priced between $814 and $980.
Where are the fuel injectors located on a 2009 Nissan Altima?
Process follow these next steps. One remove the engine compartment. Cover two carefully removing the fuel pump relay number 32 from the intelligent. Power distribution module start the engine.
What are the first signs of a bad injector?
Signs of a Bad Fuel Injector
- Your Engine Misfires. Dirty fuel injectors may cause your vehicle's engine to misfire.
- Idling Gets Rough.
- Your Gas Mileage Drops.
- The RPM Needle Is Erratic.
- Your Car Won't Start.
- The Check Engine Light Is On.
- You Spring a Fuel Leak.
Is it okay to just replace one fuel injector?
Fuel injectors work as a set, and replacing just one can lead to imbalances in your engine's performance. When one injector fails, it often indicates that the others are nearing the end of their lifespans too. Replacing all injectors at once ensures consistent fuel delivery and optimal engine performance.