Engine starts, then dies

[S2V6RACER]

Question. This all starts a couple of days after a successful trip to the track.

I go to start the engine, it fires and revs up a little then dies just like you turned the key off. I try to start it again and it does the same. I gave it some AE fuel and it kept running but stalled out when I put it in gear and basically didn't feel right. It continues to do this erratically.

Last night at the track. I fire it up and it does it again. I restart it and get it off the trailer fine. I go to tech and after tech It does it again. This time there is nothing I can do to try to keep it running. It fires and immediatley stalls. I can not keep it reved up either. I get a tow back to the trailer and start checking connections under the hood, wiggle the connectors on the ECM and then she starts up, idles fine and moves on to make a 10.41 pass.

The thing that bothers me is I do not really know what was wrong, but I figured this is the way it the FAST operates when there is a problem.

Craig, what could this be? I don't want this to happen in the staging lanes

 

[bobc455]

Ted-

If you wiggled the wires then it worked fine, why don't you think it's just a loose connection? It might not be the whole plug, but could possibly be a loose wire in the plug or something...

-Bob Cunningham
bobc@gnttype.org

 

[S2V6RACER]

Originally posted by bobc455
Ted-

If you wiggled the wires then it worked fine, why don't you think it's just a loose connection? It might not be the whole plug, but could possibly be a loose wire in the plug or something...

-Bob Cunningham
bobc@gnttype.org

I agree. BUT, I was kind of hoping for a hint in what sensor(s) that it could be. I guess I could have looked at the dashboard and monitored all the vital sensors as it fired. There is a lot going through your mind when you can't get your car started and you are in the way.

Ted

 

[Otto J]

look for some vacuum leaks and such may not be an electronic problem, add ve may just help cover the problem
Otto

 

[bobc455]

Ted-

Could be a variety of sensors, if that's the problem. Crank sensor and MAP sensor are the first to come to mind.

But I still think the easiest way to find your problem will just to start shaking wiring harnesses while the engine is running, and see which wire(s) cause the engine to die.

-Bob Cunningham
bobc@gnttype.org

 

[S2V6RACER]

I was thinking about the Gen 7 and the trouble codes and how nice that could/would have been to have.