Re: Fuel pump bypass Switches
I realize this is 12 years old, but just wanted to say the knowledge is still helpful. 
My primary pump left me stranded yesterday and I had to pull the C21 pin from the ECM to limp home on the secondary, but this gives me some ideas to implement. 
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1987: Z51 Coupe, Z51, 4+3, Yellow / Graphite, 310 RWHP 350ck L98
1994: ZR-1 #150, Admiral Blue / Black, 445 RWHP 350ci LT5
2015: Z06 Coupe, Z07, M7, Arctic White / Red, Stock LT4
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