Ross L said:will it spray when you hit the test button?
ghettosled said:check to make sure the hobbs switch is closing and sending the signal. first jumper it with wire, and assuming it works then check it with regulated air pressure.
this is all assuming the kit uses a pressure activated switch and not a 0-5 volt signal off the map sensor for activation.
Ross L said:It should spray when you hit the test button. Start the truck, have someone watch the gauge and hit the button. You should have to bring up the revs to keep the motor from stalling. I'll bet the pump is failing and you show very low pressure.
Ross L said:which kit do you have,,,,,progressive(external pump) or nonprogressive(pump mounted in the tank)? How much pressure did it show(between 80 to 120 depending on system)? If you used a jumper and show good pressure then it's probably the pressure switch. Call Steve at SMC regardless. Even if the kit was used he has great customer support.
Ross L said:The spray light on my SVO doesn't work either but it makes a solid 70-80 psi with the motor running when the "test" button is pushed. I always test it before getting into boost(25psi), it should "bog" the motor. I also have my daughter,neighbor,dad,hobo,dog someone push that %$#@ button located in the car while I check the pressure under the hood :rant: Why couldn't there be a "test" button under there as well??? Better yet a gauge you could read from the drivers seat. That would solve all of us "alcoholics" problems. :rotf: Good luck!
Ross L said:I "think" so... Call Dave Monday, he's very good to work with. I don't trust the light anyway, pressure is whats important. The light could work but you still have low pressure(I think it's triggered by a 30psi switch). Don't quote me on any of this. Best bet it to call him.![]()