another no start ? ? ?
 

ok So I have the dme jumped and the fuel pump is running but the car is acting like there is no gas ? hit it with starter spray and bam it starts right up but dies as soon as you stop spraying it ? the tac was bouncing but now it's not ? and no responce from it once the car starts on the starter spray ... could just be a bad tac I guess any help would be great...

Justin

1985 1/2 944

Bad flywheel sensor?

would it still run on eather ? ? i thought if they wer not working that the car would not fire ?

no start is no good
 

Ok, starts on either. I am assuming spark and timing is good. (you might want to check) Check voltage at the coil AND at the fuel pump while someone else cranks the car. Now, IF the fuel pump is active during cranking ( it is getting good voltage and pumping when you crank the engine) you would next want to check the fuel pressure. If no pressure gage is avail...crack a line and see if the fuel is flowing. (not exact, but it will give you an idea) IF you have fuel pressure but still no run....get a bosch "noid" and see if the injectors are getting signal.

What I am saying is...you gotta narrow it down from here. No fuel delivery is either no signal or insufficient pressure.

And of course, check all the grounds and all conectors to the FI components.