PSM

iTrader: (3)

where can i tap into under the hood to feed two sending units a steady 5 volts?

budhayes3

iTrader: (19)

Hmmm, good one....don't most of the sensors use a 5v reference? Maybe tap into the TPS, just not sure which wire....

Truckshop

iTrader: (17)

Tp Sensor, Map Sensor, Cam Sensor, Ac Pressure Transducer. Take Your Pick. What Are You Trying To Hook Up?

PSM

iTrader: (3)

I have a gm map sensor and gm oil/fuel pressure sensor that I have installed for the boost and fuel pressure, but I'm not sure which wire I can get 5v off to power them. I suppose I can just take a multimeter and start testsing away but I figured I would check here before I did that

Truckshop

iTrader: (17)

When I Installed My Fuel Pressure Sensor I Spliced 5v And Ground From My Map Sensor On The Top Of The Intake Cause It Was The Closest. Give Me Your Vehicle Info And I Can Get You Wirecolors.

Wilde Racing

iTrader: (26)

egr. safe, and usally unused...

PSM

iTrader: (3)

The vehicle is in my sig. Its an 2003 sierra denali with the lq4. Not sure what else you need. Lemme know, thanks!

I don't think I have egr.. there is nothing comming the exhaust manifolds? Do you mean there could still be wiring there? Got any idea what wire colors or where to look?

built408

iTrader: (10)

Why do your sending units need 5v?????

PSM

iTrader: (3)

yip, both of them. They are gm parts, not aftermarket ones and i believe gm uses 5 volts of lots of its sensors

budhayes3

iTrader: (19)

I believe that 03's don't have EGR, I thought that they did away with it in 02...at least on the 1500's...