Fuel Pressure input

[mr.prick]

"A" is black (ground)
"B" is gray (5v reference from the gauge to sender)
"C" is purple (return signal from sender to gauge)

[mr.prick]

*UNITS

#Code System Abbr Description
#-------- ---------- -------- -------------------------------------------------------------

PSI Imperial PSI "Pounds Per Square Inch"
# ================================================== ============================
# Add slot definitions here
# --------------------------------
# See sae_generic.txt for more information on "SLOT" formats
#
#Units Low High Fmt Expression
#------------ ------------- ------------- ---- --------------------------------------------------------------
*CLC-00-001
PSI 0.00 100.00 .2 "({EXT.AD1}*25)-12.5"

# ================================================== ============================
*PRN - Parameter Reference Numbers
# --------------------------------
# See sae_generic.txt for more information on the *PRN section
#
#Code PRN SLOT Units System Description
#------------------------- ---- ------------ ---------------- ---------------- ------------------------------------------
CALC.FP F001 CLC-00-001 PSI Fuel "Fuel Pressure"


if 0v=0psi and 5v=100psi
should`nt it be {EXT.AD1}*20)?
i ask because with no voltage it shows -12.5psi.

[mr.prick]

*UNITS

#Code System Abbr Description
#-------- ---------- -------- -------------------------------------------------------------

PSI Imperial PSI "Pounds Per Square Inch"
# ================================================== ============================
# Add slot definitions here
# --------------------------------
# See sae_generic.txt for more information on "SLOT" formats
#
#Units Low High Fmt Expression
#------------ ------------- ------------- ---- --------------------------------------------------------------
*CLC-00-001
PSI 0.00 100.00 .2 "({EXT.AD1}*25)-12.5"

# ================================================== ============================
*PRN - Parameter Reference Numbers
# --------------------------------
# See sae_generic.txt for more information on the *PRN section
#
#Code PRN SLOT Units System Description
#------------------------- ---- ------------ ---------------- ---------------- ------------------------------------------
CALC.FP F001 CLC-00-001 PSI Fuel "Fuel Pressure"


if 0v=0psi and 5v=100psi
should`nt it be {EXT.AD1}*20)?
i ask because with no voltage it shows -12.5psi.

am i wrong?

[joecar]

I thought 0.5V=0psi and 4.5V=100psi.

[sweetdiesel]

well I'll be a post whore...

In this post you attached a Schematic of the EGR
Any chance you know where i could get one for a 05 LLY Duramax diesel?
I found one for the ECM but its not showing the wire colors and I also have a fluke but i dont seem to be getting any 5 volt power from and of my EGR wires

I have un plugged the EGR plug from the motor and Im checking each pin with no luck?

Any help would be apreciated

Thanks Simon

[TAQuickness]

This is what my manual has for an '05 LLY EGR pin out. Click the pic for a larger, readable, version.

[sweetdiesel]

TA you are the best, Thanks so much!