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Kracka
10-19-2006, 01:30 PM
You swapped out the large MPI relay under the stereo, right? Check the wiring to the MPI relay and see if you're getting a signal from the ignition. You might have a bad wire between the two or a bad ignition switch.
Yes, that is the relay I swapped out. Stupid DSM's. Whats the best way to check for a signal?
A//// Guy
10-19-2006, 01:34 PM
The power wire will be hot when the key is turned to the on position. I would also check to see if the power wire on the pump is hot when the key is "on," compared to when you start the car. I have a test light we can use...
Kracka
10-19-2006, 01:39 PM
I have a test light we can use...
Cool, I think I have one somewhere too. Want to swap that pump this Sunday if we have time and/or aren't too hungover?
FattyBoomBatty
10-19-2006, 01:40 PM
That part v8killa was thinking about - would that be the check valve? I thought all/most pumps had this unit.
Goat Blower
10-20-2006, 12:31 PM
That part v8killa was thinking about - would that be the check valve? I thought all/most pumps had this unit.

That only is there to keep some fuel pressure in the line when the car is off and keep the gas from draining back into the tank. It doesn't do anything for the initial priming of the pump before starting.
Goat Blower
10-20-2006, 12:32 PM
The black/red wire comes from the ignition the the MPI relay, check that one for voltage when testing the ignition. The black/green wire goes from the relay to the fuel pump.
Kracka
10-20-2006, 01:42 PM
Thanks for the info Steve!
Halon
10-20-2006, 02:38 PM
Chris, I went through this back when I was trying to figure out why my car wouldn't start. Steve on Tuners (the guy who ended up fixing my ECU since that was my problem), told me that 1g's do not usually charge the fuel system when you turn the key. 2g's do, but 1g's ECU works differently. I'll try to link you to the thread where he told me this. Pretty sure he knows what he's talking about too.
Halon
10-20-2006, 02:44 PM
http://www.dsmstyle.com/forums/showthread.php?t=9333&page=2&highlight=starting+problem

There's my thread on here about my problem. Post number #37 has the link to my thread in Tuners, where Steve said that 1g's only pressurize the system when the key is turned to the START possition, not the ON possition. Are you having some kind of problem? Just curious why you're concerned about this.
Kracka
10-20-2006, 02:46 PM
Thanks Captain-B, I'll have to read those threads. My car is just cranking longer before starting than I'd like.