atr dual pump problems

[rob nolan]

i am having problems with my car i just purchase a atr dual pump i don't think my second pump is working the little light that comes off the relay is not coming on and plus i have detantion my fuel pressure is at 43 pounds 16 pounds of boost i have a red armstrong 93 chip for 009 injectors my mods are champion heads 206-206 cam 009 injectors bored 30 over trw forge pistons volt booster by red armstrong im having the same problems when i had a xp pump in there with detantion and another thing are the hobbs switch already set when you get it i've adjusted it to thanks rob

 

[Racetronix]

Try jumping the Hobbs switch to make sure that the secondary relay, harness and pump are functional. If they are you will see the fuel pressure jump as the return line will be overwhelmed. If this works then perhaps the Hobbs switch is set too high. If ATR is still supplying the adjustable Hobbs switch, you can remove the rubber plug in the center and back out the Allen nut a bit to lower its trigger pressure. This is best set with a hand pump and pressure gauge. Put back the rubber plug as this prevents to set screw from moving. Make sure that the pressure line going to the Hobbs switch is connected into an intake pressure port properly and not behind a vacuum check valve.

Jack
Racetronix

 

[NICKG]

jack, when are we gonna see you double pumper?

i am kinda holding out on buying one till you start selling one.

 

[rob nolan]

atr dual pump

Originally posted by Racetronix
Try jumping the Hobbs switch to make sure that the secondary relay, harness and pump are functional. If they are you will see the fuel pressure jump as the return line will be overwhelmed. If this works then perhaps the Hobbs switch is set too high. If ATR is still supplying the adjustable Hobbs switch, you can remove the rubber plug in the center and back out the Allen nut a bit to lower its trigger pressure. This is best set with a hand pump and pressure gauge. Put back the rubber plug as this prevents to set screw from moving. Make sure that the pressure line going to the Hobbs switch is connected into an intake pressure port properly and not behind a vacuum check valve.

Jack
Racetronix

does the hobbs switch need to be grounded i haven't had time to jump the hobbs switch yet but i will try it thanks rob