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-   -   928 injection problem, floods on startup (http://forums.pelicanparts.com/porsche-928-technical-forum/261664-928-injection-problem-floods-startup.html)

brittbolen 01-18-2006 12:35 PM

928 injection problem, floods on startup
 
so I'm having some engine trouble...

I've got a US 928S 32V, and I can't get it to start because it keeps flooding. It appears that the something is causing the fuel injectors to just stick open and soak the cylinders and plugs with gas. Cranking it for 5 seconds fouls the plugs and soaks everything with gas.

Things that have been checked trying to find my starting problems...

compression - fine (except none when the engine is soaked with gas, normal after letting it dry out for a few days)
timing - fine
spark - fine
fuel pressure - fine

I'm guessing either 1) my fuel injection brain is fired or 2) there is a ground somewhere that is causing the injectors to stick open.

Are the injectors on this 928 the type that always have power and fuel, and open based on a ground signal from the brain?

Has anyone seen anything like this?

My current plan is to try and find a spare brain to swap in and see if that helps, in the mean time i'm going to try and look for bad connections, or faulty grounds that might be causing the problem.

thanks,

Britt

Rixter 01-19-2006 09:42 AM

Britt,
per our conversation I do not have a known good brain, though I do know someone with a good one I will try to catch up with


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