[Gmecm] Hard to start '730

[srgreene at earthlink.net]

There are seveal places to look,
Fuel Pump relay, should pull in for a couple of seconds during cranking to bring up the fuel pressure.  If the relay is bad when the oil pressure comes up, the oil pressure switch supplies power to the pump and the vehicle starts.
I've encountered problems with cold start injectors bleeding down the fuel rail pressure, resulting in slightly longer crank times, generally not 2 seconds though.
The last place is with the battery.  A battery that is near end of life will crank, but with a lower voltage.  To trouble shoot, hold the voltage up with a good stiff battery booster or jumper cables to another vechile that is operatiung.  If the starting problem goes away, start looking for the cause of low buss voltage, battery, cable connections, starter issue etc.
Good Luck!

-----Original Message-----
From: Cowen <captain_krill at yahoo.com>
Sent: Jul 20, 2005 2:10 PM
To: gmecm at diy-efi.org
Subject: [Gmecm] Hard to start '730

Hello all!  I've been running a Fiero intake on a 3.4l
with a '730.  One of the (few) problems I'm having is
that I have to crank the engine about 2 or three
seconds before it will start.  I've deleted the
Fiero's cold start injector (there was none on the
Pontiac 6000 that donated the '730), but I'm pretty
sure I'm smelling raw gas right after startup.  Of
course, that doesn't mean it's rich, it could be that
the 2 seconds of cranking has loaded the exhaust with
fuel (and I don't have a cat').  Temperature seems to
be a non-issue, and once it doest start. it revs
properly at first, so I know the IAC is working fine.
I am still getting things together for datalogging and
reprogramming, but does anyone have any suggestions on
what might be going on?  Thanks!



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