What should I do if my Porsche loses power?
If complete MAF failure has occurred, the car will revert to a “limp-home” mode with two preset fuel injector settings (one setting for engine speeds below 2000 RPM, and one above 2000 RPM). This will allow the car to be driven home or to a workshop for repairs, but will run poorly.
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.
How is the fuel tank on a Porsche 928?
Figure 2. 928 fuel tank removed from car. 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.
Where does the fuel line go in a Porsche Carrera?
The red arrow is the actual vent valve. Incoming vent line from the gas tank (yellow arrow), Line out to charcoal canister (blue arrow), one way check valve (green arrow) and where the fuel vent line enters the charcoal canister (purple arrow).
What kind of problem does a Porsche 911 have?
Less common are leaks from the cam seals and scavenger oil pump seals. Valve cover leaks are obvious and fairly straightforward to fix on most models. The valve covers do not have a gasket – instead a liquid gasket sealer is used.
What causes excessive engine smoke in a Porsche?
Porsche’s oil capacity is much higher than most performance vehicles and must be properly filled when the vehicle as at the correct operating temperature and on completely level ground. Another common cause of excessive engine smoke is caused by a faulty Oil Separator.
What causes a Porsche engine to stop working?
It is a rather common failure on Porsche and can be replaced, and in some cases rebuilt. CV Joints can cause by normal wear and tear, however, Porsche engines put a higher demand on the strength of the CV (constant velocity) joint than most vehicles. It is important to check the grease boots for tears or cracks.
What causes an oil leak in a Porsche 911?
A failing air oil separator (aos) is the likely cause of rear main seal failure and oil leaks, as it is in other VAG cars. Crankcase vacuum exceeds the normal range in the engine under heavy acceleration and sucks in air damaging the rear main seal.