PPE Digital to Analog V8 Tachometer Driver User manual

PPEdiesel.com
Rev: 03/28/19 | v7B
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Digital to Analog V8
Tachometer Driver
GM 6.6L Duramax 2001-2007
(112030000)
Installation Guide
Digital to Analog V8 Tachometer Driver

Digital to Analog V8 Tachometer Driver
1
DISCLAIMER OF LIABILITY
Performance products can increase horsepower above and beyond factory specications.
Additional horsepower creates more stress on the drive-train components, which could
result in drive-train failure.
Note regarding emissions-related, non-E.O.-legal products: THESE PRODUCTS ARE
LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES THAT MAY NEVER BE USED,
OR REGISTERED OR LICENSED FOR HIGHWAY OR OFF-ROAD USE.
This agreement sets forth the terms and conditions for the use of PPE products. The
installation of this product indicates that the Buyer has read and understands this
agreement and accepts the terms and conditions. PPE (Pacic Performance Engineering)
Inc., its distributors, employees, and dealers (the “Seller”) shall not be responsible for the
product’s proper use and service. The buyer hereby waives all liability claims. The Buyer
hereby acknowledges no reliance on the Seller’s skill or judgment to select or furnish goods
suitable for any particular purpose and that there are no liabilities which extend beyond
the description on the face hereof, and the Buyer hereby waives all remedies or liabilities
expressed or implied, arising by law or otherwise (including without any obligation of the
Seller with respect to tness, merchantability and consequential damages), or whether or
not occasioned by the Seller’s negligence. The Seller disclaims any warranty and expressly
disclaims any liability for personal injury or damages. The Buyer acknowledges and agrees
that the disclaimer of any liability for personal injury is a material term for this agreement
and the Buyer agrees to indemnify the Seller and to hold the Seller harmless from any claim
related to the item of equipment purchased. Under no circumstances will the Seller be liable
for any damages or expenses by reason of use or sale of any such equipment. The Seller
assumes no liability regarding the improper installation or misapplication of its products.
It is the installer’s responsibility to check for proper installation and if in doubt, contact the
manufacturer. The Buyer is solely responsible for all warranty issues from the manufacturer.
LIMITATION OF WARRANTY
The Seller gives Limited Warranty as to description, quality, merchantability, and tness for
a particular purpose, productiveness, or any other matter of Seller’s product sold herewith.
The Seller shall not be responsible for the products proper use and service and the Buyer
hereby waives all rights other than those expressly written herein. This warranty shall not
be extended, altered or varied except by a written instrument signed by Seller and Buyer.
The Warranty on PPE Manifolds and Up-Pipes Kits, OEM-Length Up-Pipes is three (3)
years, a limited lifetime warranty on PPE cast aluminum pans and covers, and a limited
lifetime warranty on PPE Transmission Coolers and one (1) year limited warranty on all
other PPE products from the date of sale to original buyer and limited solely to the parts
contained within the products kit. All products that are in question of Warranty must be
returned prepaid to the Seller and must be accompanied by a dated proof of purchase
receipt. All Warranty claims are subject to approval by Seller. Under no circumstances will
the Seller be liable for any labor charged or travel time incurred in diagnosis for defects,
removal, or re-installation - of this product or any other contingent expenses. Under no
circumstances will the Seller be liable for any damage or expenses incurred by reason of
the use or sale of any such equipment. In the event that the buyer does not agree with this
agreement: the buyer may promptly return this product, in a new and unused condition in its
original packaging, with a dated proof of purchase to the place of purchase within ten (10)
days from date of purchase for a full refund. The installation of this product indicates that
the buyer has read and understands this agreement and accepts its terms and conditions.

Digital to Analog V8 Tachometer Driver
2
This unit can recalibrate an ignition system tachometer signal. Adjustment is
done by setting the cylinder count for the incoming engine signal (1-16) and
the cylinder count for the outgoing gauge signal (1-16). Fine adjustment can
also be done to make corrections to the gauge needle reading.
* If the NORMAL output does not drive your tachometer, use HI VOLT.
Setup
OUT: Set output (gauge) cylinder count. 1 – 16 allowed.
(Fine cal is set to 1.00)
 A2000RPMsignalwillbegeneratedreectingthecurrentcylinder
count for gauge testing.
IN: Change input (engine) cylinder count. 1 – 16 allowed.
(Fine cal is set to 1.00)
519: change between 5V low voltage “LO” and 12V normal “HI” signal types.
1. Beginwiththekeyo.
2. Press and hold the SET switch while turning the key on. The display will
show the current version code.
3. Release the SET switch. The display will show “IN”.
4. Press and release the INC switch until the desired setup option is
displayed: IN, OUT, 5 19, END
5. Press and release the SET switch to select the setup option.
6. Press and release the INC switch to change the setting. Press and
release the SET switch to save it.
Setup example:
If you have a factory 6 cylinder tachometer and are now using an 8 cylinder
engine, set the engine
cylinder count “IN” to 8 and the gauge cylinder count “OUT” to 6.
Not used. 1/2 normal tach output
Standard output to tachometer
High voltage output for some tachometers
Jumper to HI VOLT output for some
early Toyota tachometers
UNIVERSAL TACH INTERFACE
SET INC
12V accessory Power
Ground
Sensor ground (not used)
Ignition system tach signal
(negative side of coil or tach output)
POWER GROUND SENSOR GND SIGNAL IN NOT USED HI VOLT NORMAL OUT 3

Digital to Analog V8 Tachometer Driver
3
Diagnostic Testing
Thebasicpowerupandoperationcanbeveriedwiththedisplayonthe
SGI-8E. The dot in the upper left corner will be on steady when the unit is
poweredupandnotgettingatachometersignal.Thedotwillbeashingwhen
atachometersignalispresent.Whenthekeyifrstturnedon,thedisplaywill
showthecurrentneadjustCALvalueforafewseconds.Ifbothswitchesare
pressed at the same time the current, incoming speed signal frequency will be
displayed. If the frequency displayed has a decimal point, then the reading is
kHz, otherwise the reading is Hz.
Both the input and outputs can be tested with special diagnostic modes.
To test the outputs and tachometer reading with the engine o:
1. Beginwiththekeyo.
2. Press and hold the SET switch while turning the key on. The display will
show the current version code.
3. Release the SET switch. The display will show “IN”.
4. Press and release the INC switch until “OUT” is shown.
5. Press and release the SET switch. The display will show the current
gauge cylinder setting and be supplying a 2000 RPM signal.
6. Press and release the INC switch until the gauge reading is close to
2000 RPM. Press and release the SET switch to quit.
To test the input while driving:
1. Beginwiththekeyo.
2. Press and hold the INC switch while turning the key on.
The display will show “TST”.
3. Release the SET switch. The display will show “---”.
4. Anytime either switch is pressed the display will update and hold the
frequency. This can be done to determine the type of signal being fed to
the SGI-8. This information can be supplied to tech support to assist in
 setupandcongurationoftheunit.
5. Theunitwillremaininthismodeuntilthekeyisturnedo.

Digital to Analog V8 Tachometer Driver
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Problem
Tachometer will not work.
No lights on display.
Tachometer will not work.
Dot on steady.
Tachometer will not work.
Dotisashing.
Tachometer will not
read at high rpm.
Tachometer is reading
incorrectly
Possible cause
No power to SGI-8
No input signal.
SGI-8 set for wrong input type.
OEMltercircuitbetween
SGI-8 and gauge.
Wrong output type
High voltage boost required.
SGI-8 set for wrong input type
Engine or gauge setting incorrect.
Engine or gauge setting incorrect.
Gaugerequiresneadjust.
Solution
Check the power and ground
terminals on the SGI-8.
Should be 11-15 V dc.
Test for 1-20 volts AC at the signal
in terminal with the engine running.
Change the Setup -519 option.
Seeinstructionsonrstpage.
Make sure SGI-8 connects directly
to the gauge
Try switching from NORMAL to
HI VOLT
Use HI VOLT to drive gauge and
jumper NOT USED terminal over
to HI VOLT
Change the Setup - 519 option.
Seeinstructionsonrstpage
Change the Setup In or Out values.
Seeinstructionsonrstpage.
Use the “+” or “-” buttons to correct
the gauge reading
Trouble Shooting Guide

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