Zex Smartbox HELP!
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Zex Smartbox HELP!
Anyone know how to calibrate a Zex Smartbox dry shot system. it's on my buddys car and was working fine he other day, tried to calibrate TPS wouldn't calibrate to specs so swapped it. Now calibrated to specs but still won't shoot the nitrous. Tried raising and lowering fuel pressure to see if the vacuum was off maybe, yet still nothing. Can't find a owners manual or any specs on calibration on this system. Any help would be appreciated before we just hook up a regular solenoid on a switch.
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