Basically, the one thing I want to test before actually running the nitrous is that the solenoids are opening at WOT. I have an electronic throttle switch hooked into the TPS. If I have the ignition key in acc position with engine off, will the TPS still read volts? Is there any other way to make sure the nitrous only flows at WOT?

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Jim
94 Camaro Z28 M6 - 13.7 @ 103 Stock
96 Turbo Probe GT *sold* - 14.5 @ 98 Not Stock

 

You aren't going to see TPS voltage in the accessory position, but you should see it with the key turned the other way in the "run" position (without starting the engine).

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Fred
94 Formula A3: 381/TH400/N2O

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11.513@115.59 on motor; 11.162@127.67, 1.643 60' on a 125-shot. Going with a 275-shot this year

 

Yep. Thats how my zex is. put it in "run" and make sure bottle is closed. Give it gas, if it clicks you good to go.

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`96 TransAm: RamAir w/ K&N filter, 125hp Zex dry kit, 3.73 gears, McLeod StreetTwin clutch, Borla cat-back, 1le alum. driveshaft, B&M shifter, Walbro in-line fuel booster pump, Granatelli MAF, 52mm TB w/Airfoil and coolent bypass, LT4 KM + programmed computer, Accel 8.8 race wires, Zex Hyperformance plugs, MSD Univ. Adj. timing, Window switch, Sport-comp Nitrous, Boost, Fuel pressure gauges in center 3 vents and Air/Fuel gauge on A-pillar pod, Mobil 1 only, !CAGS, Yokohama tires, tinted windows.

Low 13's on motor.
Low 12's on bottle.
"Lots of throttle and a backup bottle"