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-   -   Engine Turns... but no start (https://www.germanautoforums.com/forum/porsche-911-8/engine-turns-but-no-start-8369/)

ghempo84 08-23-2009 04:54 PM

Engine Turns... but no start
 
So, I drove my 1994 C4 yesterday and everything seemed fine, although I had been noticing that it was taking a little while longer to turn over the car than usual. Today, I went to start my car and the engine kept turning over (battery good) but the car wouldn't start, almost like it was starved for fuel. Any idea what the problem might be? Thanks.

PorscheDoc 08-23-2009 05:04 PM

Start with your DME relay.

Panzer 08-24-2009 11:21 AM

might also be the contacts on the brain box. I had to resoder mine.

ghempo84 08-25-2009 09:54 AM

what is the best way to check the DME relay?

Panzer 08-26-2009 05:19 PM

I made a wire to carry with me in case mine fails. Just 2 ends to 1 like the prongs on the relay.

ghempo84 08-27-2009 05:44 PM

So, to which prongs must the wire be connected? Also, with the DME plugged in the engine appears to be getting a little fuel b/c it sputters a couple times before failing to start. Obviously, with the DME removed there's no sputter. Could it be a fuel pump issue?

PorscheDoc 08-27-2009 06:08 PM

Make 3 wires with 3 male spade connectors (1 end only). Use a wire nut to connect the wires together on the other end. You will be using the ports for the big terminals on the dme relay. Just don't forget to pull it out after testing, as the fuel pump will constantly run with it plugged into the relay panel.

The sputtering is really indicative of a bad dme relay.

ghempo84 09-01-2009 04:33 PM

I tried the three wire solution and I still couldn't get my car to turn over. Yesterday, I received a new DME and I plugged it in and gave it a try... still didn't start. Is there anything else I could try? I also ran down the battery trying to start the car, so I jumped it but that didn't really help at all. Thanks for all the help so far.

PorscheDoc 09-02-2009 11:24 PM

My next angle of attack would be to check for fuel first, then check for spark, and figure out which one you aren't getting and go from there.


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