Why is my Porsche 993 losing so much power?
If the car is running fine during idle or cruising speeds, but runs poorly at high RPM, then a dirty fuel filter may be the culprit. A clogged fuel filter will restrict fuel flow and the engine cannot receive enough fueling in aggressive driving situations.
How does OBD 2 work on Porsche 993?
As the first 911 equipped with On Board Diagnostics 2 (OBD II), the Porsche 993 monitors many components to ensure proper operation of the vehicle. Many engine-related problems can be detected by the on-board computer and illuminate the check engine light to alert the owner of a problem.
What should the resistance be on a Porsche 993?
Resistance can be checked at the sensor plug with a digital multi-meter and should vary depending on engine temperature. Measurements should read: 32 degrees Fahrenheit 4.4k-6.8k ohms, 60-85 degrees 1.4k-3.6k ohms, 105 degrees 1.0k-1.3k ohms, 175 degrees 0.250k-0.390k ohms, and 265 degrees 0.090k ohms. Figure 8. White wire running to CHT. Figure 9.
What’s the variable intake system on a Porsche 993?
The varioram is a variable intake system used on 1996+ model 993s. This intake uses a three-step system that utilizes a resonance flap and six trumpet-style tubes inside of the intake manifold that vary in length depending on engine RPM. These trumpets extend and retract allowing for more bottom-end torque while also increasing high RPM horsepower.
If the car is running fine during idle or cruising speeds, but runs poorly at high RPM, then a dirty fuel filter may be the culprit. A clogged fuel filter will restrict fuel flow and the engine cannot receive enough fueling in aggressive driving situations.
Is the Porsche 993 Carrera a rear wheel drive car?
Both the coupé and convertible variants of the 993 were available with all-wheel drive. Porsche also offered the 993 Carrera as an all-wheel drive version called the Carrera 4. In contrast with the 964, Porsche deleted the “2” from the rear-wheel drive “Carrera” name tag.
Resistance can be checked at the sensor plug with a digital multi-meter and should vary depending on engine temperature. Measurements should read: 32 degrees Fahrenheit 4.4k-6.8k ohms, 60-85 degrees 1.4k-3.6k ohms, 105 degrees 1.0k-1.3k ohms, 175 degrees 0.250k-0.390k ohms, and 265 degrees 0.090k ohms. Figure 8. White wire running to CHT. Figure 9.
As the first 911 equipped with On Board Diagnostics 2 (OBD II), the Porsche 993 monitors many components to ensure proper operation of the vehicle. Many engine-related problems can be detected by the on-board computer and illuminate the check engine light to alert the owner of a problem.