Why is the fuel pump relay bad on a Porsche 928?
For 1984 – 86 model year 928s, the fuel pump relay is the source for voltage to the fuel injectors and the LH module provides the fuel injection current path to ground. Therefore, a bad fuel pump relay can also result in no voltage to the fuel injectors.
Is it possible to repair a Porsche 928 international?
928 International 928 International is a team dedicated to providing you with the information needed to repair and maintain your Porsche 928. *Some of these files must be viewed with Adobe Reader. This can be downloaded for freefrom Adobe’s website*
What should I do about my Porsche 928 odometer repair?
Odometer Repair Oil change Oil Check Valves Oil Filler Neck Oil Pressure Sender Replacement Parking Brake System Pinch Collar- Drive shaft movement Pod Removal and Instrument Cluster Repair Pod Removal and Instrument Cluster Repair Part 2 Power Steering Hose
Where are the ground wires on a Porsche 928?
One is at the top of the “O” in the word Porsche cast into the cam cover — and it may be covered-up by the emissions air injection valve/hose. The second attachment point on the cam cover is more visible and is closer to front of car. Point 10 For later Euro cars, look for ground wires attached to the back of cam gear metal rear covers.
Why does my Porsche 928 not want to start?
Having sort of resolved the issue of the 928 not wanting to start, I turned my attention to issues with the HVAC system. I knew from my first drive that things weren’t quite right.
What is the solenoid on a Porsche 928?
His detailed explanations are very useful to anyone new to the 928. Soon I had exposed the solenoid that distributes vacuum to the various flaps and controllers. I found that I had leaks at the center dash mixing flap and at the recirculation flap. I tore into the center dash. I did find one diaphragm with a hole in it.
How does flap control work on a Porsche 928?
Flap Control. This is accomplished by constant heating and cooling, and is monitored by outside and inside temperature sensors. An electric motor (on left side of the air conditioner box or right side for RHD cars) operates the heating flaps (open/closed) depending on the program selected with the control switch.
Where is the temperature selection lever on a Porsche 928?
Note: In temperature selection lever position 18 (left stop) there is only (since 1982 models) cooling, no heating — max. cooling. In temperature selection lever position 30 (right stop) there is only heating, no cooling — max. heating.