Pressure sensor test?

I have a 1976 Porsche 914 2.0 Starts, runs for about ten seconds and quits, I am not getting any power to the fuel injectors while it cranks and runs, can anyone help me I need a specific procedure for checking the inlet pressure sensor either with an ohmeter o with voltage I don't own a sophisticated tester. Thanks, Jaime

__________________
This post was auto-generated based upon a question asked on our tech article page here: Pelican Technical Article: Ignition Troubleshooting List...

[Wayne 962]

Well, the old way that we used to test to see if they were any good was to just suck on them. If you could suck through them, then they were bad. If they held a vacuum, then they were good. Not scientific, but very useful for checking the units when we found them at the local swapmeets.

- Wayne

[lars s]

Yes a basic test is to check the MPS for vaccum holding.
To fully test your MPS you will need an instrument that can read inductance (Henry) and a good vaccum meter (and a vaccum source)...

However if memory serves, the car should run (but wery badly) even if the MPS is electrically disconnected so possibly your problem is somewhere else...it could be that it starts and runs some seconds on the gas by the cold start valve.

Have you checked that the plug for the D-jet trigger contacts at the bottom of the dizzy is fully in? if so check the triggers themselves.
Also check the resistance (Ohms) for the cylinder head temperature sensor .
The multiple earth connector at the top of the crankcase is another important point to check.


/Lars S