Had an oil leak coming from the oil pump drive\distributor blank, the o-ring was cracked and hard as plastic.I bought a new O-ring from rock auto and they sent me a pack of 5 for $1.49 =] I tried to find replacement O-rings for the fuel regulator and the other rail input , I bought 2 from GM for $20 that looked like they where not correct. I had a "kit" of nitrile O-rings I bought at Harbor freight tools some time ago. I thought nitrile O-rings were ok with gas, on the label on the box said not to use with aromatic fuels which I think means they contain benzene . Actually none of the O-rings looked like they were the right ones anyway. So I used the old O-rings, so I wanted to crank the engine over to see if it leaked, but I think just turning the key to on turns on the fuel pump. The good news is I went back to the HFT store today to use my free item coupon and a 20% off coupon and I found a "kit" of O-rings that are made of HNBR rubber and they are ok to use in automotive applications (says the label) and some of them look exactly what I need. Well there were no fuel leaks. Sometime in the future will replace all the O-rings in the fuel rail system they were starting to dry out but looked serviceable for the time being. thanks for everyone that answered, now that I think of it I think there is a relay that can be removed that disables the ignition.

Clear flood mode, and removing the ICM connector stops the injectors from pulsing.
If one was really worried about that happening they could just do both remove the fuel pump relay, and disconnect the power plug to the ICM like Tech II suggested.

Ahh, understood, glad to hear it is not leaking, if you ever have trouble finding a part from most parts stores, check out Nalley Buick Parts, I have found a lot of parts there that are typically dealer only, or OE parts.

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