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 See Programming Software Price List to view details on purchasing the OBD1 Tuning system

OBD1 TUNER PROGRAM DESCRIPTION

The OBD1 Tuner program is a general purpose ECM calibration editor that allows you to make a wide variety of calibration changes to your vehicle's OBD1 ECM/PCM from an 'easy to use' Windows environment.

The program locates and displays the calibration parameters in standard engineering units so there's no need to work with or even understand hex and binary numbers. We've tried to make the tables simple to understand as they will often correspond to what your scan tool shows you.

With the addition of the appropriate ECM Definition File, the OBD1 Tuner program supports a wide range of vehicles, from 1982 through 1995 including the LT1 and L99 Flash ECM's from the LT1 cars.

Each ECM Definition file is designed to give you access to the calibration parameters required to support major engine modifications, such as camshaft upgrades, Vortec cylinder heads or Edelbrock parts, larger displacement (strokers), Injector size changes, and superchargers, etc.

The sample shown below is a type $42 ECM (1227747) used  in standard duty 87- 91 C/K Pickup Trucks and Vans. The ECM Definition Files for the next generation of PCM's are considerably larger and include transmission control functions.

This is the ONLY software package available for editing the GM 6.5 Turbo Diesel.    
 

 

 

Type $42 ECM Drop Down  Menu

(1227747 ECM)

  • ECM Switches  - off/on functions for diagnostic trouble codes or enabling or disabling certain characteristics of the engine or transmission.

  • ECM Constants - single value functions such as:

    • INJECTOR Flow rate

    • ENGINE  Displacement

    • EGR parameters 

    • FAN on/off Temperatures

  • Two and Three Dimension Tables 

    • All values in engine units, there's no Hex code to learn or convert to real world numbers--its all done for you !

    • Tables are based on RPM, throttle position, speed, etc...most are self explanatory.
Typical 2D Table 

"Pump Shot" Vs. Differential TPS
(Added fuel for acceleration)

This adds pulse width to the increase in throttle position change.

Changes to calibrations may be made in the table or the graph format

Typical 3D Table (Main Spark in Crank Degrees vs. RPM and Manifold Pressure)

Changes can be made on the table or the 3D graph by "clicking and dragging" a data point.
Main Spark Graph

 

We sell this as a complete package including 6.5 Turbo Diesel definition files and include an EPROM Programmer (new Automatic version), a quality EPROM Eraser, and necessary Memcal and Eprom adapters so you don't have to solder or de-solder anything.

 

PROGRAM
ID BYTE		 ECM P/N PLATFORM EPROM
TYPE/Size
$27 1227137 86 Astro/Safari Van, Caprice, Le Sabre, Monte Carlo LB4, 4.3L 2732A
$76 1228934 85 - 93 C/K Truck, Commercial Truck, (HD) Manual Trans LB4, 4.3L 2732A
$42 1227747 87 - 91 C/K Truck, Van, 4.3L, 5.7L, 5.0L & 7.4L 2732A
$4F 1228747 87 - 92 C/K Truck, Van,  5.7L & 7.4L (HD) 2732A
$3F 1227429 86 - 88 2.8L LL2, 2.8L LL2 S-10 2732A
$4E 1228062 89 - 90 4.3L LB4, 2.8L LL2 S-10
89 - 93 2.8L LL2 S-10		 2732A
$A0 16144288
16143900		 91 -  92 4.3L S-10 & C/K Truck 2732A
$58 1227749 91 - 93 Syclone & Typhoon 27C128
$85

16147060 or
16127470

 91 - 93 C/K Truck, Van,  5.7L & 7.4L (HD) 27C256
$53 1227165 87 - 89 S10 Truck, 2.5L, LN8 27C128
$83A 1227165 90 - 91 S10 Truck, 2.5L, LN8 27C128
$94

1227165 or
16156647

 91 - 93 S10 Truck, 2.5L, L38 27C128
$A4 16147525 91 - 98  Commercial (Medium Duty) Trucks, LS0 6.0L 2732A
$99 16146299 92 C/K Truck, Van, 4.3L, 5.7L & 7.4L 2732A
$1A 16202995 93 - 95 C/K Diesel Truck L65, Auto Trans, TCM 27C128
$D3 16128420 92 - 93 C/K Diesel Truck L65, Auto Trans, TCM 27C128
$D5 16156647 92 S10 Truck, Astrovan 4.3L, L35 CPI 27C256
$9A

16156480,

16196396 or
16171199

 93 - 95 C/K Truck, Van, 5.0L & 5.7L, Manual Trans. 2732A
$E6 16168625 93 C/K Truck, Van, 4.3L, 5.0L & 5.7L 27C512
$0D 16196395 or
16197427		 94 - 95 C/K Truck, Van, S-10 2.2L LN2 (16168505),
4.3L, 5.7L & 7.4L		 27C512
$0DA 16196395 or
16197427		 94 - 95 Truck, Van, 4.3L L35 CPI 27C512
$0E 16196395 or
16197427		 94 C/K Truck, Van,  5.7L & 7.4L (HD) 27C512
$31 16197427 or
16156930		 95 C/K Truck, Van,  5.7L & 7.4L (HD)
95 - 96 Hummer H1 (Gas)		 27C512
$8C 16245358 95 C/K Truck, Van,  4.3L 27C512
$8CA 16245358 95 Truck, Van,  4.3L L35 CPI 27C512
$63 16197427 96 - 97 C/K Truck, L05 EXPORT ONLY 27C512
$EC 16212488 94-95 C/K Truck, with 6.5L Turbo VIN "S" and VIN "F" 27C512
$ECA 16212488 94-95 C/K Truck, with 6.5L Turbo VIN "S" and VIN "F" Variant 27C512
$ECB 16212488 94-95 C/K Truck, with 6.5L Turbo VIN "S" and VIN "F" Variant 27C512
$ECS 16212488 94-95 C/K Truck, with 6.5L Non-Turbo VIN "S" 4L60E 27C512
$FD 16212488 94-95 C/K Truck, with 6.5L Turbo Manual Trans 27C512

PROGRAM
ID BYTE		 ECM P/N PLATFORM EPROM
TYPE/Size
$1F 1226870 85 Y CAR 5.7L TPI (L98)
86 F CAR 5.0L TPI (LB9)		 2732A
$27A 1226868 85 Impala, Caprice, El Camino 4.3L (LB4) 2732A
$32 1227165 86 Y & F CAR 5.0L / 5.7L TPI 27C128
$32B 1227165 87 - 88 Y & F CAR 5.0L / 5.7L TPI 27C128
$3A 1227302 86 - 89 F CAR LB6 / LB8 V6 2732A
$41 1227746 87 Caprice / Monte Carlo 4.3L LB4 2732A
$4D 1228063 88 F CAR 5.0L LO3 TBI 2732A
$61 1228746 89 - 92 F & B Cars, LO3 & LO5 Eng. 2732A
$6E 1227165 89 Y & F CAR 5.0L & 5.7L 27C128
$88 1227730 or
16197128		 90 - 92 F CAR LH0 V6
90 - 94 Cavalier / Sunbird LH0		 27C256
$8D 1227727 or
1227730		 90 - 91  Y CAR 5.7L TPI
90 - 92  F CAR 5.0L & 5.7L TPI		 27C256
$8E 1228331 90 Corvette ZR1 (LT5) 27C256
$AF 1228331 91 Corvette ZR1 (LT5) 27C256
$62 16136965 91- 93 Caprice, LB4, L03 & L05 Eng. 2732A
$D0

16163860 or
16163993

 92 Corvette ZR1 (LT5) 27C256
$DA2 16159278 92 - 93 Y  CAR 5.7L, LT1 27C256
$DA3 16159278 93 F CAR 5.7L, LT1 27C256
$F0

16163993 or
16196394

 93 - 95 Corvette ZR1 (LT5) 27C256
$EE 16181333 or
16188051		 94 - 95 Y, F & B CAR, Cadillac 5.7L, LT1, L99 (FLASH) (incl. 'Rev B') FLASH

PROGRAM
ID BYTE

ECM P/N

 PLATFORM EPROM
TYPE/Size
$1D 1226459 84 - 85 LM9 3.8L V6 Turbo Buick / Pontiac 2732A
$2A 1227065 85 LN3 3.8L Buick / Olds 2732A
  1226869 84-85 Pontiac Fiero 4 Cyl Iron Duke 2532
$14 1226156 84 Pontiac Fiero 2.5L 4 Cyl. LR8 2732
$1C 1226864 85 - 86 Pontiac Fiero 2.5L 4 Cyl. LR8 2732A
$24A 1226869 85 Pontiac Fiero 2.8L V6 2732A
$24 1227170 86 - 88 Pontiac Fiero 2.8L V6 2732A
$3E 1227730 87 - 88 Buick / Pontiac / Olds, LL8 2.0L 27C128
$31B 1227148 86 6000, Cutlass, Delta, Le Sabre LG3, 3.8L, V6 2732A
$T31 1227148

86 - 87 Turbo Buick
89 Trans Am LC2

 2732A
$48 1227748

87 - 88 Pontiac Fiero 2.5L 4 Cyl. LR8
87 - 90 Celebrity, 6000, Cutlass, Ciera, Century 2.5L 4 Cyl. LR8

 27C128
$55 1227730 87 - 88 Celebrity, 6000, Ciera, Cutlass, Century 2.8L LB6 27C128
$44 1227783 87 - 88 Buick / Pontiac / Olds, LG3 3.8L, V6 2732A
$5F 1227748 89 Grand Am, Cutlass, Skylark 2.5L, L68, 4 Cylinder 27C128
$8CB 1227748 90 - 91 Grand Am, Cutlass, Skylark 2.5L, L68, 4 Cylinder 27C128
$89 1227727 90 - 92 Buick / Pontiac / Olds W-Body LR8, 2.5L 27C128
$58A 1227749

87 - 90 Sunbird, Grand Am, 2.0L, LT3 Turbo

 27C128
$5B1 1228253 88 Buick / Pontiac LN3, 3800, V6 27C256
$5B2 1228253 89 - 91 Buick / Pontiac LN3, 3800, V6 27C256
$5B3 16141470 91 Buick / Pontiac L27, 3800, V6 27C256
$5B4 16141470 92 - 93 Buick / Pontiac L67, 3800, Supercharged 27C256
$5B5 16132792 or
16141470		 90 - 92 Pontiac W-Body L27, 3800, V6 27C256
$F5 13177107 or 16141470 93 Pontiac / Pontiac / Olds L27, 3800, V6 27C256
$5B6 16183247 95 Buick / Pontiac L36, 3800, V6 27C512
$5B7 16183247 94 - 95 Buick / Pontiac L27, 3800, V6 27C512
$5B 16183247 or
16197428		 94 - 95 Buick / Pontiac L67, 3800, Supercharged 27C512
$1FA 16196387 94 - 95 Buick / Olds L82, 3.1L, V6 27C256
$2E 16196401 94 - 95 Buick / Pontiac Olds LQ1, 3.4L, V6 27C256
$6D 1227730

87 - 89 Buick / Pontiac LB6, 2.8L, V6
89 - 90 Buick / Pontiac LH0, 3.1L, V6

 27C256
$8F 1227727 89 - 90 Buick / Pontiac LG5 3.1L V6 MFI Turbo 27C256
$50 1228321 89 - 90 Cavalier, Sunbird LL8 2.0L 27C128
$70 1227748 90 - 91 Cavalier, Sunbird LM3 2.2L 27C128
$A1 1227730 91 - 93 J, L, W Cars LH0 3.1L V6 27C256
$A7 01228708 90 2.3L Quad4 HO 27C256
$AE 1228706 91 Grand Am, Achieva, Skylark, Celebrity, 6000, Ciera,
Cutlass LG7, 3.3L, V6		 27C256
$D4 1228706

92 - 93 Grand Am, Achieva, Skylark LG7, 3.3L, V6

 27C256
$DF 16149396

91 - 93 Buick / Pontiac LQ1 3.4L V6
93 Buick / Pontiac LH0 3.1L V6

 27C256
$5C 1227749 88 Grand Am, Cutlass, Calais, Beretta LD2 / LG0 (Quad 4) 27C256
$6B 1228707

89 Grand Am, Cutlass, Calais, Beretta LD2 / LG0 (Quad 4)

 27C256
$8B

1228707 or
1228708

90 Grand Am, Cutlass, Calais, Beretta LD2 / LG0 (Quad 4)

 27C256
$A8

1228707 or
1228708

91 Grand Am, Cutlass, Calais, Beretta LD2 / LG0 (Quad 4)

 27C256
$CE 16156450

92 Grand Am, Cutlass, Calais, Beretta LD2 / LG0 / L40 2.3L
(Quad 4)

 27C256
$E8 16173278 93 Grand Am, Achieva, Skylark L40, 2.3L, 4 Cyl 27C512
$F1 16191947 94 - 95 LN2 2.2L Pontiac / Buick / Olds 27C512
$36 16196285 95 LN2 2.2L Cavalier / Sunbird 27C512

PROGRAM
ID BYTE		 ECM P/N PLATFORM EPROM
TYPE/Size
CD1 16132240 90 Cadiallac LW2, 4.5L, V8 (ATTL) 27C512
NS1 16132240 91 - 93 Cadillac L26, 4.9L, V8 (BWYH, BWYJ, BWYN) 27C512
NS2 16132240 91 Cadillac L26, 4.9L, V8 (AYFP) 27C512
NS3 16132240 or 16123860 92 - 93 Cadillac L26, 4.9L, V8 (AZCP, BBXD, AZXF) 27C512
NS4 16132240 91 - 92 Cadillac L26, 4.9L, V8 (AZPW, AZCP) 27C512
NS5 16196347 94 Cadillac L26, 4.9L, V8, Manual Trans (BWYZ) 27C512

PROGRAM
ID BYTE		 ECM P/N PLATFORM EPROM
TYPE/Size
$5D 1227808 88 - 89 Australian Holden (Early VN) 27C128
$A5 1227808 88 - 90 Australian Holden (Late VN) 27C128
$B1 1227808 90 - 91 Australian Holden (Late VN) 27C128
$DB 1227808 90 - 92 Australian Holden (VP) Group A V8, HSV 27C128
$FB 1227808 92 Australian Holden (VP) 27C128
$11 16176424 or 16195699 93 - 94 Holden VR 3.8L, 5.0L Auto 27C512
$12 16176424 or 16195699 93 Holden VR 3.8L, 5.0L Manual 27C256
$5A 1683082 or 16206305 Holden VS 5.0L V8 27C256
$58H 16176424 or 16195699 Holden VS HSV 5.0L V8 27C512
$5BH 1683082 or 16206305 Holden VS HSV 5.8L V8 27C512
$83 16176424 or 16195699 Holden VS 5.0L V8 27C512
$84 16176424 Holden VS HSV 5.8L V8 27C512

PROGRAM
ID BYTE		 ECM P/N PLATFORM

EPROM
TYPE/Size
3500 Edelbrock

Edelbrock Pro-Flow Systems

 27C256

Updated Jan 05th, 2010

Update your operating OBD1 software:

Version 2.25 update for OBD1 Editing Software

Version 1.33 Update for OBD1 Realtime Software

If you wish to buy a better EPROM Programmer or UV Eraser:

Xtronics, Manufactures the Pocket Programmer, an economically priced programmer that is compatible with all the GM EPROM's and the Romulator EPROM emulator an EPROM emulator that is compatible with our RT OBD1 Tuner (Real time programming) program. They also carry a low cost EPROM eraser and their site has a good explanation of how EPROM's work and some other good general information. http://www.xtronics.com
 

See Programming Software Price List to view details on purchasing the OBD1 Tuning system. This system comes with Eraser, Burner, all necessary adapters for NO SOLDERING. Optional Flash/Scanner cable available and always in stock.

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   Updated June 2010 rw