HIGH PRESSURE GDI FUEL PUMP VW GOLF 6 5K1 1.4 TSI 2008-2015 03C127026C

Description

[2008-2015] VOLKSWAGEN GOLF 6 5K1, 517, AJ5 TSI 1.4L

[2008-2017] VOLKSWAGEN JETTA 118TSI 1.4L CAVD / CTHD

[2010-2017] VOLKSWAGEN POLO TSI 1.2L 6C / 6R (CJZC CJZD CBZB)

[2010-2015] VOLKSWAGEN CADDY 2C TSI 1.2L CBZA CBZB

[2011-2016] VOLKSWAGEN TIGUAN 5N 118TSI 1.4L CAVD/ CTHD

[2012-2016] VOLKSWAGEN BEETLE NEW 5C1 TSI 1.4L CAVD/ CTHD

OEM# 03C127026M, 03C127026C

Features：

Package Includes:

Our OEM Replacement Gasoline Direct Injection Pumps provide reliable operating pressures for stable fuel combustion at low and high speeds, contributing to an efficient engine operation.

• Designed to OE fit, form, and function
• Ease of installation due to OE style connector
• Designed to minimize negative impacts on the engine, improve fuel economy and reduce harmful emissions
• Extensive quality control at all levels of production

NOTE: WHEN YOU REPLACE THE PUMP PLEASE CHANGE YOUR VEHICLE OIL WITH THE MANUFACTURER’S RECOMMENDED  REQUIREMENTS.

70% OF GDI FUEL PUMPS FAIL JUST BECAUSE OF WRONG OR DIRTY OIL.

COMPATIBLE VEHICLES:

GET TO KNOW YOUR Petrol Direct Injection High-Pressure Fuel Pumps(HPFP)

Direct Injection petrol engines are now fitted to more than 2 million vehicles in Australia and New Zealand. They allow manufacturers to produce a low-capacity engine that produces higher output while providing improved economy and lower emissions.

Basically, the Direct Injection system injects a precise amount of fuel directly into the combustion chamber at much higher pressures than traditional petrol injection systems, allowing the engine to run leaner and more efficiently.

The High-Pressure Fuel Pump (HPFP) is the main component in this system. It is responsible for compressing the fuel, supplied by the Electric Fuel Pump, to the pressure required for High-Pressure Injection. The HPFP is mounted to the engine and mechanically driven by the camshaft, while the ECU is able to vary the output to match the load requirements of the engine.

Various sensors and solenoids (listed below) provide inputs to ensure the system functions at maximum efficiency.

1. Pressure Solenoid – controls the volume and pressure of the HPFP by changing the stroke and port location.
2. Pressure and Temperature Sensors – generate information for the best possible combustion condition.
There are a number of factors that can cause the Direct Injection HPFP to malfunction. Diagnosing the issue is usually straightforward, however, the cause of the failure of the pump also needs to be found and rectified or the new pump will prematurely fail.

Common Failure and Cause:

Lack of maintenance.

When oil changes are stretched out or missed altogether, this can cause wear between the camshaft lobes and the HPFP
follower, as well as carbon, build up in the intake. This will prevent the HPFP from generating enough piston movement, therefore, reducing the fuel pressure. Fault codes will normally be logged, and the MIL will illuminate.

Incorrect engine oil

Can cause the HPFP to fail prematurely due to inadequate lubrication of the camshaft and HPFP cam follower. This can also damage the camshaft lobes and it is also important to inspect and remedy this upon replacing an HPFP.

Leaking Injectors

Due to the extremely high fuel pressures, the system runs at, some leaks down may occur when the engine is switched off. This can cause a build‐up of carbon and a rich fuel mixture, creating a longer crank cycle and early failure.

ECU Software

If you are diagnosing a driveability problem on a petrol direct injection vehicle or replacing an HPFP, make sure the engine ECU has the latest calibration. Newer calibrations can help solve wear problems and driveability issues and may save you from replacing the pump. Smoke on start-up Seals failing within the pump can allow lubricating oil to enter the fuel side when the engine isn’t running. There will be numerous rich codes logged in this scenario.

IMAGE FOR ILLUSTRATION PURPOSE ONLY. PLEASE COMPARE OE NUMBER