When does a Porsche 928 have an idle problem?
This article applies to the Porsche 928 (1978-1995). Your Porsche 928 should have a constant, steady, low idle. It shouldn’t be rough or fluctuating. An idle problem is something you want to get checked out as soon as possible because it is certainly causing your 928 to not run at its peak. This includes lower gas mileage.
Why is my Ford 928 not running at peak?
An idle problem is something you want to get checked out as soon as possible because it is certainly causing your 928 to not run at its peak. This includes lower gas mileage. Read on to discover the top four reasons that can be the cause of a rough idle in the 928.
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.
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.
Why does my Porsche 928 keep losing power?
This article applies to the Porsche 928 (1979-1995). The Porsche 928, with all of its electronic gadgetry and engine control devices, can experience rough running and loss of power. Many of these poor engine performance issues can often be intermittent and leave owners scratching their heads as to what the potential problem could be.
What should the idle rate be on a Porsche 928?
Your Porsche 928 should have a constant, steady, low idle. It shouldn’t be rough or fluctuating. An idle problem is something you want to get checked out as soon as possible because it is certainly causing your 928 to not run at its peak. This includes lower gas mileage.
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.
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 was the original purpose of the Porsche 928?
Originally intended to replace the company’s iconic 911, the 928 combined the power, poise, and handling of a sports car with the refinement, comfort, and equipment of a luxury sedan. Porsche executives believed such a flagship would have wider appeal than the compact, quirky and sometimes difficult to drive 911.
How many horsepower does a Porsche 928 S4 have?
1 Model designation: 928 S4 2 Weight: 1590 kg (3500 lb) 3 Engine displacement: 5.0 L 4 Valves: Four per cylinder 5 Power: 320 PS (316 hp, 236 kW) / 300 PS (296 hp, 221 kW) for Australia. 6 Changes: Different style pistons, cylinder heads, camshafts, intake and larger intake valves compared to earlier 5.0 L engines. …
This article applies to the Porsche 928 (1978-1995). Your Porsche 928 should have a constant, steady, low idle. It shouldn’t be rough or fluctuating. An idle problem is something you want to get checked out as soon as possible because it is certainly causing your 928 to not run at its peak. This includes lower gas mileage.
Why is my Porsche not idling at 675 rpm?
A very small change in any one of the various engine components can have a big effect on the way the car idles and drives. So, if your car is not idling at approximately 675 RPM, chances are something is not quite right. This article applies to the Porsche 928 (1978-1995).
What was the model year of the Porsche 928?
The following versions and sub-models of Porsche 928 Coupe were available in 1980: 1980 Porsche 928 (man. 5) specs Porsche 928 (man. 5) , model year 1980, version for North America (up to October)
An idle problem is something you want to get checked out as soon as possible because it is certainly causing your 928 to not run at its peak. This includes lower gas mileage. Read on to discover the top four reasons that can be the cause of a rough idle in the 928.
When did John Pirtle change his Porsche 928 S4?
Porsche 928 S4 Service John Pirtle, May 7, 2003 http://members.rennlist.com/pirtle Air-conditioning During a Spring get-to-together of area 928 owners (details) we learned about R-12 to R-134a conversions.
What to do with a 928 S4 service arm?
Pull the arm down as far as possible with the temp set to full cold. If it pulls down further than the connector at the motor then a gap is being left in the flaps. The top end of the arm is a screw fitting, so turn the arm to adjust the length until it matches with the motor, and reconnect.
Is the Porsche 928 receiver / drier relatively expensive?
I called 928 Specialistsand learned that the Porsche receiver/drier is relatively expensive. “However…” they sell an alternate (about one-third of the cost) that is a similar fit and I had no problem whatsoever (this unit is a bit narrower so I added a piece of rubber between it and the bracket to keep a snug fit).
Is there a 1987 Porsche 928 S4 for sale?
Gateway Classic Cars of Philadelphia is presenting a 1987 Porsche 928 S4 For Sale. The 928 S4 debuted towards the end of 1986 as a 1987 model. An updated version of the 5.0 L V8 producing 316 hp an… More Info › 1987 Porsche 928 S4 supercharged V8 automatic. 82,000 miles. Mint condition. All fluids recently changed along with brake work.
Why was the Porsche 928 so popular in the 1970s?
By the early 1970s, it was clear that increasingly tough and complicated emissions and safety regulations were going to change the American automotive market’s landscape. And since America was Porsche’s biggest market, higher-ups reasoned it was only a matter of time before such restrictions hampered the sales appeal of their 911.
Why did Porsche have to kill the 911?
By developing an entirely new Porsche, one with all the latest federal regulations already incorporated, Porsche hoped to meet the new standards head on. In the meantime, if the Stuttgart company had to kill the 911 because of such standards, it would be prepared to transition.