Sylvie Willis
The Infiniti G35 is a powerful car, but how much power can its stock fuel pump handle? The stock fuel pump for the G35 delivers a maximum of 130L/H, and it is located in a plastic cylinder in the fuel tank under the rear seat. Some G35 owners have reported that their fuel pumps have failed, causing issues such as stalling, surging, and difficulty starting the vehicle. It is recommended to replace the fuel pump if these issues occur, and AutoZone offers a range of replacement options. Some G35 owners have also chosen to upgrade their fuel pumps to higher-performance options, such as the DELPHI FE0351 fuel pump, which can perform at 185 LPH. It's important to note that upgrading to a higher-flow fuel pump may require additional modifications to the fuel system, such as upgrading the fuel pressure regulator.
| Characteristics | Values |
|---|---|
| Fuel consumption | 12.5L per 100km |
| Fuel pump location | In the fuel tank under the rear seat |
| Fuel pump pressure | 90-120 LPH |
| Fuel pump replacement | Available at AutoZone |
| Fuel type | E10 or E5 fuel |
| Horsepower | 371 whp |
| Max horsepower | 400 hp |
Explore related products
What You'll Learn
Fuel pump location
The fuel pump in the Infiniti G35 is located in the fuel tank, under the rear seat. The pump is housed in a plastic cylinder, which must be carefully opened without breaking the plastic clips.
One user on the G35Driver forum noted that for the coupe, you have to remove the rear seat cushion to access the fuel tank. However, they advise against removing the fuel tank, as it requires taking out the rear axle.
Another user on the same forum purchased a Walbro 255LPH fuel pump and asked if they needed to drop the fuel tank to install it or if they could access it through the trunk. Unfortunately, no response to this query was provided in the thread.
The fuel pump is susceptible to failure over time due to wear and tear, and issues such as stalling, surging, or difficulty starting may indicate the need for a replacement.
California's Budget: Fuel Taxes Explained
You may want to see also
Explore related products
Fuel pump replacement
The stock engine of the Infiniti G35 is believed to be able to handle no more than 400 hp. However, it is important to note that the fuel pump's capacity is separate from the engine's ability to handle horsepower.
Now, onto the fuel pump replacement. While it is a challenging task, replacing a fuel pump can be done by a handy DIYer. Here are the steps to replace the fuel pump:
Preparation:
- Park your vehicle on a firm, level surface and engage the parking brake.
- Gather all the necessary tools and equipment, including a new fuel pump, fuel filter, and any other components specific to your vehicle.
- Reduce the amount of fuel in the tank to minimize the risk of spills and make the tank lighter and easier to handle. You can drain the fuel into an approved container like a gas caddy or gas can.
- Find the fuel pump, which is usually located in the fuel tank, and open the fuel cap.
Removal of Old Fuel Pump:
- Disconnect the negative battery cable and relieve the fuel system pressure.
- Remove any retaining straps or bolts holding the tank to the frame and lower the tank.
- Disconnect the filler tube hose and the electrical connection to the pump.
- Remove the fuel lines and take out the old fuel pump from the tank.
Installation of New Fuel Pump:
- Compare the new fuel pump with the original to ensure you have the correct part.
- Install the new fuel pump, following the manufacturer's instructions, and any necessary part transfers from the old unit.
- Reassemble the fuel system, ensuring the fuel filter is replaced as well.
Testing:
- Test the new fuel pump to ensure everything is functioning properly.
- Turn the key to the "ON" position and listen at the filler opening. A properly working fuel pump will hum for two to three seconds.
Remember to always work in a well-ventilated area, wear safety gear (glasses, gloves, and appropriate clothing), and have cleanup materials ready in case of spills.
Fuel Consumption of the B-17: Hourly Breakdown
You may want to see also
Explore related products
Fuel consumption
Firstly, it is important to understand the specifications of the stock fuel pump in the G35. According to sources, the OEM (Original Equipment Manufacturer) fuel pump in the G35 is designed to deliver a maximum fuel flow rate of 90-120 liters per hour (LPH) or approximately 130 liters per hour. This flow rate is crucial in determining the fuel consumption of the vehicle.
One of the key indicators of fuel consumption is the mileage or the distance that can be covered with a specific amount of fuel. In the case of the G35, one user reported that with 37.02 liters of fuel, they were able to drive 221.6 miles in the city, resulting in a fuel consumption of 22.7 miles per gallon (MPG). This translates to approximately 10.2 liters per 100 kilometers. This fuel consumption rate is relatively efficient for a vehicle in its class.
It is worth noting that fuel consumption can be influenced by various factors, including driving conditions, terrain, and vehicle maintenance. For example, highway driving typically offers better fuel economy compared to city driving due to fewer stops and a more consistent speed. Additionally, regular maintenance, such as replacing the fuel filter and ensuring the fuel pump is functioning optimally, can also impact fuel consumption.
In terms of the fuel pump's role in fuel consumption, it is essential to understand that the pump itself does not directly manage fuel usage or consumption. However, a malfunctioning fuel pump can lead to issues such as stalling, surging, or difficulty starting the vehicle. Replacing the fuel pump with an upgraded version can potentially improve fuel efficiency, as reported by some G35 owners. For example, one user observed a decrease in fuel consumption from 12.5 liters per 100 kilometers to 10.2 liters per 100 kilometers after installing a DELPHI FE0351 fuel pump, which has a higher flow rate of 185 LPH.
In summary, the stock fuel pump in the Infiniti G35 is designed to deliver a maximum fuel flow rate of 90-120 LPH or approximately 130 LPH. The fuel consumption of the G35 is relatively efficient, as indicated by the reported mileage of 22.7 MPG or 10.2 liters per 100 kilometers. While the fuel pump does not directly manage fuel consumption, maintaining its optimal function and considering upgrades can potentially improve fuel efficiency.
The Internet's Carbon Footprint: Fossil Fuel Dependence
You may want to see also
Explore related products
Fuel type
The fuel type used in the Infiniti G35 is pertinent to the performance of the fuel pump. The OEM (Original Equipment Manufacturer) fuel pump delivers a maximum of 90-120 LPH (litres per hour) or 130 L/H (litres per hour). However, some G35 owners have opted for an aftermarket DELPHI FE0351 fuel pump, which can achieve a higher flow rate of 185 LPH. This replacement pump is also compatible with ethanol-mixed fuels, which are becoming more common in certain regions. For example, in the EU, fuels typically contain 5-10% ethanol, labelled as E10 or E5, while in Estonia, all fuels must contain ethanol. Ethanol-blended fuels offer environmental benefits through cleaner exhaust emissions and can also enhance vehicle performance.
It is worth noting that the stock fuel pump in the G35 is designed to handle the fuel requirements of the engine as it comes from the factory. However, modifications or performance enhancements may require a higher-flow fuel pump to accommodate increased fuel demands. In such cases, it is crucial to select a compatible pump that does not exceed the fuel requirements to avoid unnecessary wear and tear on other components, such as the fuel pressure regulator.
When considering fuel pump upgrades or modifications, it is essential to take into account the specific fuel requirements of the G35's engine and the availability and type of fuel in the region where the vehicle is operated. While the DELPHI fuel pump can accommodate ethanol-mixed fuels, it is important to ensure that the engine is compatible with these fuel types to prevent potential damage to the fuel pump, gaskets, fuel lines, and rubber parts.
Additionally, it is worth mentioning that the fuel pump is not solely responsible for fuel efficiency or performance. Other factors, such as fuel injectors, the intake manifold, and the overall engine configuration, play significant roles in the vehicle's fuel economy and power output. Therefore, when addressing fuel-related concerns or modifications, a holistic approach that considers all relevant components is necessary to achieve optimal results.
Lawn Mower Fuel Efficiency: Hourly Consumption Explored
You may want to see also
Explore related products
Injector horsepower
Bigger fuel injectors can increase horsepower by allowing more fuel to enter the engine, which can then be combusted to generate more power. This is due to their larger bore, which allows for a higher flow rate of fuel. However, installing larger fuel injectors without making other necessary upgrades will likely cause engine problems due to too much fuel entering the engine.
To take advantage of the extra fuel provided by bigger injectors, other modifications are necessary. These can include upgrading the cylinder heads, cam, fuel pump, increasing the size of the fuel lines, and installing a bigger throttle body. Without these modifications, bigger fuel injectors can put extra pressure on the fuel pressure regulator, causing it to wear out earlier.
The amount of horsepower gained depends on the size of the injectors and the accompanying modifications. Tools like the Fuel Injector Calculator by FuelTech can assist in selecting the proper fuel injector sizing for performance and tuning control.
Citronella Power: Tiki BiteFighter Fuel Explained
You may want to see also
Frequently asked questions
A stock G35 fuel pump can handle a maximum of 130L/H.
Stumbling when starting up, a lack of power during acceleration, stalling, surging, and difficulty starting are all signs that your fuel pump may be malfunctioning.
The fuel pump is located in the fuel tank under the rear seat.
AutoZone offers a range of high-quality Infiniti G35 fuel pump replacements. You can also purchase a replacement fuel pump from eBay, although be aware that there are many copies of the Walbro 190L/H pump sold on the site.
In the EU, most fuels are sold with 5-10% ethanol. Regular fuel typically has 10% ethanol, while premium fuel has 5-6%. The Nissan engine can typically endure 20% ethanol-mixed fuel.
