What kind of fuel pump does a Porsche 928 have?
Figure 1. 928 external fuel pump (blue) and fuel filter (cover plate removed to expose). Other cars will have the external pump AND an internal pump. The internal pump is usually identified by two electric wires exiting the gas tank at the same point as the fuel hose that runs to the external fuel pump.
What does a fuel pump on a Porsche do?
A fuel pump is one of the most essentially important automotive parts. It serves as the heart of your vehicle’s internal combustion system as it pumps the gasoline from the vehicle’s fuel tank to the engine. Without it, you’re not going anywhere. Follow these steps to replace a faulty fuel pump on your Porsche 928.
How do you replace fuel pump cover plate?
Replace the cover plate – Reposition the fuel pump cover plate and reinstall the 10mm nuts to hold it in place. Tighten-down. Consider starting the car up before replacing the cover plate. This will give you a chance to view the new pump and any other parts you’ve replaced while they are in use.
What kind of wrench do I need to replace fuel pump?
Remove the electrical wires from the fuel pump. The ground wire (brown) takes an 8mm wrench, and the power lead takes a 7mm wrench. This helps keep the wires from being attached to the wrong terminals. Figure 14. Disconnect power wire to pump with 7mm wrench.
Figure 1. 928 external fuel pump (blue) and fuel filter (cover plate removed to expose). Other cars will have the external pump AND an internal pump. The internal pump is usually identified by two electric wires exiting the gas tank at the same point as the fuel hose that runs to the external fuel pump.
A fuel pump is one of the most essentially important automotive parts. It serves as the heart of your vehicle’s internal combustion system as it pumps the gasoline from the vehicle’s fuel tank to the engine. Without it, you’re not going anywhere. Follow these steps to replace a faulty fuel pump on your Porsche 928.
Replace the cover plate – Reposition the fuel pump cover plate and reinstall the 10mm nuts to hold it in place. Tighten-down. Consider starting the car up before replacing the cover plate. This will give you a chance to view the new pump and any other parts you’ve replaced while they are in use.
Remove the electrical wires from the fuel pump. The ground wire (brown) takes an 8mm wrench, and the power lead takes a 7mm wrench. This helps keep the wires from being attached to the wrong terminals. Figure 14. Disconnect power wire to pump with 7mm wrench.
Why does my Porsche 928 not Rev out?
Fuel dampener replacement. On early 928 models with K-jetronic fuel systems, poor performance and the inability for the engine to rev out can be associated with the CIS (Continuous Injection System) fuel distributor or warm up regulator. In simple terms, the fuel distributor is a control valve that separates incoming fuel to each injector.
Can a Porsche 928 be driven in limp home mode?
It is not recommended to drive the car for an extended period of time in limp-home mode. The 928 utilizes a throttle position switch (TPS) to make fueling and ignition timing adjustment based on throttle input. The TPS has a setting for idle and a setting for wide-open throttle which is only activated at about 3/4 throttle input.
Fuel dampener replacement. On early 928 models with K-jetronic fuel systems, poor performance and the inability for the engine to rev out can be associated with the CIS (Continuous Injection System) fuel distributor or warm up regulator. In simple terms, the fuel distributor is a control valve that separates incoming fuel to each injector.
How does the fuel pump work on a Porsche 928?
Keeping on track with fuel-related issues, the 928 fuel injection systems uses a fuel pressure regulator and fuel dampeners to control fuel flow to the injectors. The regulator and dampeners have a rubber diaphragm in them, with fuel pressure on one side of this diaphragm and vacuum on the other.
It is not recommended to drive the car for an extended period of time in limp-home mode. The 928 utilizes a throttle position switch (TPS) to make fueling and ignition timing adjustment based on throttle input. The TPS has a setting for idle and a setting for wide-open throttle which is only activated at about 3/4 throttle input.
What does the TPS do on a Porsche 928?
The 928 utilizes a throttle position switch (TPS) to make fueling and ignition timing adjustment based on throttle input. The TPS has a setting for idle and a setting for wide-open throttle which is only activated at about 3/4 throttle input. The TPS is a very common failure on 928’s and can cause various poor running conditions.
What causes electrical issues in a Porsche 928?
Oxidation and corrosion can cause many electrical issues. There are also a lot of sensors in the 928 which the car relies on to gather signals. Corrosion causes problems with these signals and can lead to a variety of electrical issues as well. It’s a good idea to inspect, clean, and replace these components once a year. Figure 2.
When to replace fuse box on 1977 Porsche 928?
The fuse box on a 1977 Porsche 928. Timing belts and water pumps on the Porsche 928 are good for around 50,000 miles but should be replaced no later than that point. Failure of the timing belt can cause serious engine damage on post-1985 models, and some have reported failure in as few as 15,000 miles.
What to look for in a Ford 928?
One of the first areas to inspect on the 928 when engine performance begins to suffer is the fuel filter and fuel tank. With the 928 creeping up in age and many cars having sat for extended periods of time at some point during their lives, build up in the fuel system can occur.
Can a fuel leak cause a Porsche 928 to fire?
2 Like many things, the fuel lines in the Porsche 928 engine bay can become dried out and brittle, and are prone to leakage. Since these lines carry fuel (some under high pressure) through the hot engine bay, it is possible that a fuel leak could lead to an engine fire.
How to replace the air filter on A 928S?
Roger at 928s R Us can be reached at [email protected] or call 817.430.2688) you are well on your way. You’ll have to identify which lines need to be replaced. Remove the air tubes on the sides of your engine as well as the airbox (where the filter is). First undo the rubber straps, lift off the cover, then the filter.