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Old 01-28-2006, 02:43 PM   #8
Scooby Specialist
Member#: 21764
Join Date: Jul 2002
Chapter/Region: RMIC
Location: Salty Lake
Some GDM V8,
JDM Flat 4 X2


Sooo...i got some more weird stuff hapening that scoobydorift or I cant figure out.
My car runs and dies after 8sec. no matter if i let the car hold it at idle, or if i hold it at 3K. it only runs for 8sec. looking farther into it, we figgured out that the ECU is cutting fuel for some reason. We sprayed starter fluid, and it kept on runing, untill we stop spraying. thinking it was the fuel pump, we ran 12V directly to it, and still the same thing.
I then hooked up an oscylescope to my car, and looked at all the sensor signal patterns and they all looked in spec.
I also only got 1 CEL, and its for waste gate controll solenoid.
so now im stuck.
anyone got any ideas.
also how long does it take for the Pressure exchange solenoid to click over from ambient to engine pressure.
if anyone would be so kind, would you go and disconect your pressure exchange solenoid, and map sensor and see how long the car runs for? that is the only thing i can think it might be...but cant realy test that out.

also one VERY intresting thing. hooked up a Z4 ecu (myne is a 3B) to my car, and it wouldnt even fire up....kinda weird, considering that the 2 ecu's use the same wiring diagrams.
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