Hey, i have a friend who is running a 2.4 gm s/c with the cooling mist 150psi deluxe meth injection and everything is wired fine, the boost switch, fuse is fine and the ground and the hot wire are all wired correctly. If your in park (auto car) and rev the motor the pump will come on ticking fine because it's set on 2psi to come on and he can build 3psi just at idle reving but when you put it in drive and floor it the pump will NOT come on at all. Anyone have any tips as to why this could be happening because he has taken off the lines, checked them out, squirted meth into the nozzle and used a air gun and it comes on out fine just will not spray at WOT but will at idle reving it into boost. Thanks.



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2003 Cavalier LS Sport "SHOCKWAVE"

The engine has to be spinnning faster at WOT than it doeas at part throttle to create the same amount of boost with a blower, are you sure it just isn't coming on after 3 or 4 grand or so and you can't hear it?