GM: TunerCat OBD2 Tuner

Introduction

TunerCat OBD2 Tuner is a software package that allows tuning of 96-current GM vehicles.  For some early 96-97 vehicles, it is often the only solution. TunerCat OBD2 Tuner must be purchased with our RoadRunner hardware (either with a complete RoadRunner ECM or just a RoadRunner Guts kit)  due to licensing restrictions.  TunerCat OBD2 Tuner also has an optional reflash cable accessory and software (“WinFLASH”) that allows vehicles to be flash programmed over the OBD2 port.  Existing users of TunerCat OBD2 software can use a RoadRunner ECM with the RTOBD2 upgrade.  This upgrade is only available to existing users of the TunerCat software.

Currently (3-26-2012) the TunerCat application suite is known to work under Windows XP, Vista and Win7.  There are compatibility issues with Vista and Win7 that can be addressed. (see below)  Currently, the software supports real time tuning with the RoadRunner on supported vehicles, reading and flashing over the OBD2 port. THERE IS NO BUILT-IN DATALOGGING APPLICATION. You must have a third party logger or scan-tool in order to have an effective tuning combination.  MX Scan used to work with older versions of the TunerCat reflash cable but it is NOT reported to work with current cables.

TunerCat OBD2 Tuner is licensed on a per-VDF (Vehicle Definition File) basis.  You can purchase each VDF individually or as a package including a group (LS1, All) of definitions and hardware together at a discount.  Each VDF generally covers multiple vehicles that use similar engine controllers.  Once you have purchased a VDF, you may tune as many vehicles of that type as you like – there is no per-VIN licensing.

Vehicle Support

The latest list of supported vehicles can always be found here: TunerCat ODB2 VDF files

As of the time of writing (3-26-2012), the following vehicles are supported:


Vehicle Definition
File P/N

Supported Vehicles

Trucks

OBD2_07


1996 – 97 Vortec Trucks (4.3L, 5.0L,
5.7L, 7.4L)


OBD2_06


1998 – 00 Vortec Trucks (4.3L, 5.0L,
5.7L, 7.4L)


OBD2_19

1999 –
00 Medium Duty Trucks (7.4L MFI Gas)


OBD2_03

2001 –
02 LS1 Trucks (4.3L, 4.8L, 5.3L, 6.0L, 8.1L)


OBD2_04

2003 –
05 LS1 Trucks (4.3L, 4.8L, 5.3L, 6.0L, 8.1L)


OBD2_14

2006
– 07* LS1 Trucks (4.3L, 4.8L, 5.3L, 6.0L, 8.1L)


(*only 2007 trucks with old style
PCM are supported)


OBD2_29

2002
– 05 L6 4.2L Trailblazer, Envoy, Bravada


OBD2_50

2007
– 08 V8 Trucks & SUVs (CAN Bus E38 ECM)


OBD2_51

2009
– 12 V8 Trucks & SUVs (CAN Bus E38 ECM except 2011-12 L96 6.0L
Heavy Duty Trucks)


OBD2_52

2007
– 12 V6 4.3L Trucks & SUVs (CAN Bus E37 ECM)


OBD2_59

2008 – 2009 Cadillac SRX 4.6L

2008 – 2012 Chevy Colorado 2.9L,
3.7L and 5.3L

2008 – 2009 Chevy Trailblazer, SS
4.2L, 5.3L and 6.0L

2008 – 2012 GMC Canyon 2.9L, 3.7L
and 5.3L

2008 – 2009 GMC Envoy 4.2L, 5.3L


2008 – 2010 Hummer H3, H3T 3.7L and 5.3L

V8 Cars
OBD2_08

1996 –
97 LT1 Corvette, Camaro, Firebird, Impala

OBD2_09 1997
– 98 LS1 Corvette, Camaro, Firebird
OBD2_01

1999
– 01 LS1 Corvette, Camaro, Firebird


1999 – 2001 Holden

OBD2_05

2002 –
03 LS1 Corvette, Camaro, Firebird


OBD2_20

2002 –
2004 Holden


OBD2_10

2004
LS1 Corvette

OBD2_12 2004
GTO
OBD2_13 2004 – 05 Cadillac CTS-V

OBD2_53

2010
– 12 V8 Camaro / 2009 – 2011 Corvette (except 2011 ZR1)

OBD2_55 2006 – 08 Corvette
OBD2_56 2008 – 09 Pontiac G8 V8
V6 Cars
OBD2_15 1996 Camaro/Firebird
V6
OBD2_16 1997 Camaro/Firebird
V6
OBD2_17 1998 – 1999 Camaro/Firebird
V6
OBD2_18 2000 – 2002 Camaro/Firebird
V6
OBD2_23 1996 V6
Chevy*/Buick/Pontiac* 3.1, 3.4, 3.8L
(*except
Camaro/Firebird)
OBD2_24 1997 V6
Chevy*/Buick/Pontiac* 3.1, 3.4, 3.8L
(*except
Camaro/Firebird)
OBD2_25 1998 – 1999 V6
Chevy*/Buick/Pontiac* 3.1, 3.4, 3.8L
(*except
Camaro/Firebird)
OBD2_26 2000 – 2001 V6
Chevy*/Buick/Pontiac* 3.1, 3.4, 3.8L
(*except
Camaro/Firebird)
OBD2_27 2002 – 2003 V6
Chevy*/Buick/Pontiac* 3.1, 3.4, 3.8L
(*except
Camaro/Firebird)
OBD2_28 2004 – 2005 V6
Chevy/Buick/Pontiac* 3.1, 3.4, 3.8L
(*2004/05 Grand Prix
not

supported)
Transmissions
OBD2_60 2007 – 2012 T42 Transmission
Controller – 4 speed Automatic
OBD2_61 2007 – 2012 T43 Transmission
Controller – 6 speed Automatic

Installation Tips and Troubleshooting

TunerCat OBD2 tuner relies on the same FTDI drivers that we use for the rest of our products.  If you suspect you have driver issues, please consult the USB Driver Troubleshooting Guide.

TunerCat does not always install and run cleanly under Windows Vista and Win7 without specific guidance.

Follow these steps:

  1. If you’ve already run the installers, first uninstall the program.
  2. In order for the programs to install correctly the installation program must be run in Compatibility mode. Before running the setup program right click on it. Select Properties from the list and then click the Compatibility tab. From there, pick the default (Windows XP SP2), click on the ‘Apply’ button and then click on the ‘OK’ button.
  3. Now double click on the setup program to install the program and follow the on-screen instruction to complete the installation.
  4. After completing the installation you’ll also need to set the OBDII RT Tuner program itself to run in compatibility mode. To do so, right click on the OBDII RT Tuner icon on the Desktop, Select ‘Properties’ from the pop-up menu and then click the ‘Compatibility’ tab. On the Compatibility screen click on the ‘Run the program in compatibility mode, select the default Windows XP SP2, check the ‘Run as administrator’ box, click on the ‘Apply’ button and then click on the ‘OK’ button. Then repeat this process or the WinFlash OBDII program.