A High-Pressure Fuel Pump (HPFP) is a mechanical system, driven by a camshaft. Unlike a regular fuel pump, the HPFP is able to provide this bigger engine with enough fuel to run sufficiently. The high-pressure fuel pump uses a solenoid to control the volume and pressure within the pump.
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What does a HPFP do?
A High-Pressure Fuel Pump (HPFP) is a mechanical system, driven by a camshaft. Unlike a regular fuel pump, the HPFP is able to provide this bigger engine with enough fuel to run sufficiently. The high-pressure fuel pump uses a solenoid to control the volume and pressure within the pump.
What is HPFP problem?
Signs of a High-Pressure Fuel Pump Failure Engine sputtering: When you press on the accelerator to gain a higher speed, a failing HPFP can malfunction and cause your BMW to sputter. Poor acceleration: Without the HPFP, your car cannot accelerate as it is designed.
Does a HPFP increase horsepower?
The Ultimate High Pressure Fuel Pump (HPFP) Upgrade is Here! The APR High Pressure Fuel Pump (HPFP) increases maximum volume of fuel the HPFP can deliver by 37% over stock! In doing so, the direct injection fueling system is capable of satisfying fueling requirements set forth by high horsepower setups.
What happens when a high pressure fuel pump fails?
When the fuel pump fails completely, it will not be able to inject fuel into the combustion chamber at all. This will automatically lead to a complete stop of the car since no fuel will be reaching the engine to run it.
How do I know if my HPFP is bad?
Symptoms of a high-pressure fuel pump failure are:
- Delayed start of the engine.
- Hesitation or sputtering in acceleration between 2000 RPM to 4000 RPM.
- High engine temperatures.
- Vehicle stalling due to exertion or temperature.
- Fuel pressure gauge reading low measurements.
- Poor gas mileage.
How much does it cost to replace HPFP?
According to BMWAutoParts, the HPFP cost only $204.13 (see below); and I think the labor is approximately 1-2 hours. Very likely, BMW will quote you $400 to $1000. Unless you have voided your warranty, your pump is covered for 10 years.
Can you drive with bad HPFP?
You cannot drive more than 15 to 30 minutes with a bad fuel pump. This is because, if the fuel pump goes bad, it may not pump enough fuel needed for the engine and car to run, therefore, making your car off at any given time.
How much does a CP4 failure cost?
Most warranties exclude fuel contamination, and once a CP4 injector pump fails the metal shrapnel it sends throughout the engine and fuel system is considered contamination. Fixing this can cost consumers between $10,000 to $15,000.
How long does a high pressure fuel pump last?
Fuel pumps have been known to last for over 200,000 miles in some cases. After 100,000 miles, the failure of the pump is likely enough that if you are replacing a major part in the fuel system nearby, it may be advantageous to replace it at the same time.
How long will a CP4 pump last?
around 100,000 miles
Air in the pump means that metal rubs against metal, causing accelerated wear. This will eventually cause the CP4 to fail, often around 100,000 miles. Before it fails, metal shavings are produced by the CP4, which travel into the fuel injectors and the fuel lines with catastrophic results.
How much is a fuel pump for a Volkswagen?
How much does fuel pump replacement cost? The average national cost for a fuel pump replacement across all vehicles is roughly between $611 and $894. Your Volkswagen might be more (or less) than that, but you’ve come to the right place on KBB.com.