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Information for your Chevy small block fuel injection system-
TPI swapping into an older vehicle. Click here to start
Also information for LT1 and the LSx-Gen III engines (scroll down)
Since its inception in 1985, The Tuned Port Fuel Injection system has captured the imagination of performance enthusiasts. With its sleek low profile, high tech styling, powerful torque and unlimited hop up capability, it is no wonder, over twenty-five years later, it has remained one of the most popular swaps. Although there are many books and articles written on technical aspects and basic swap information, there is very little in the way of what has been published in those "nickel and dime" details that could either make or break your enthusiasm in installing a tpi in a non-tpi vehicle. I hope the information here will help guide you in making your tpi swap a successful one.
Suggested reading (TPI Books and More)
TPI Troubleshooting Flowchart Link
Distributor Gear Applications-Important Reading
Do It Yourself Information Page
1986-92 TPI Vacuum Line Diagrams
Chevrolet TBI General information
Chevrolet LT1 general information
General Engine and Performance
ECM Schematics:1985-95 TBI, TPI and LT1
1226870 (1985 F&Y body V8 TPI) 1227165 - 16198259 - 16198445 (1986-89 F&Y body V8 TPI)
1227727 - 16197128 - 16198260 (1990-91Y body V8 TPI) 1227730 - 16196344 - 16198262 (1990-92 F body V8 TPI)
1227747 (1987-91 C/K Truck, Van, 4.3L, 5.7L, 5.0L & 7.4L) 1228746 (1989-92 F & B Cars, LO3 & LO5 TBI V8).
16136965 (1991-93 Caprice, Roadmaster L03 & L05 TBI V8) 16159278 (1993 F body LT1, 1992-93 Y body LT1)
16181333 or 16188051 (1994-5 F, Y & B body LT1) 16214399 (1996) 16242921 (1997) (F, Y and B body LT1)
Prom BCC codes- TPI 1985 1986 1987 1988 1989 1990 1991 1992
Prom BCC codes-LT1 1992 1993 only. 1994-97 are non-removable flash proms
Basic Component information for the LS1/GEN III engines!
The Gen III engine family has become the fastest growing swap, in part to the simplicity of the design, and the unlimited performance potential these power plants offer. The information here mainly covers the early engines from 1997 through 2006. This is includes the LS1/LS6 5.7L, and the Vortec truck family of 4.8, 5.3, and 6.0L displacement. Does not cover LS2, LS7, LS9 or any other derivative of the later Gen IV or V engines.
Shown above is my 2010 Project Iron Horse LS6
1998 LS1 PCM pinouts 1998 LS1 PCM Schematics PCM Service # 16238212
1999-2002 LS1 PCM pinouts: F body (Corvette similar).
1999-2002 LS1 PCM schematics PCM Service #'s 9354896/12200411
1999 Vortec V8 (4.8/5.3L) PCM pinouts (2000-2003 w/o DBW similar)
1999-2003 Vortec V8 PCM schematics service # 9354896/12200411
1999-2005 Corvette PCM pinouts.
1999-2005 Corvette PCM Schematics
2004 Pontiac GTO LS1 PCM pinouts
DTC Trouble codes courtesy of Street and Performance.
Cylinder head and engine component ID's
PCM identification by year (1997-2007)
Cruise Control Diagrams and Information ( non Drive by Wire).
Project 2010- My Iron Block 425 HP LS6 engine. This is in progress!