1992 LT1 (Corvette) 1993 (F-Body) Speed Density fuel injection system, was a great concept with 275 to 297 HP and 304 ft-lb of torque, made this the most powerful injected engine in GM small block production history. The operating system was Speed Density, meaning all metering of the fuel injection was based on the RPM, Manifold Absolute Pressure (MAP). Throttle Position Sensor (TPS) and Engine Coolant Sensor (ECT) and the Intake Air Temp (IAT) to play cleanup better, kept the AFR (Air Fuel Ratio) in check. The 8 Injectors are batch fire controlled, giving this 350 CID 5.7 liter injected engine optimal drive-ability. The fuel injection configuration on this engine was Multi Port Fuel Injection MPFI, with Bosche injectors that have a set range of 16 Ohm. The distributor is a Hall Effect style ignition system, which is located behind the water pump. The coil and module are located on the right side, passenger top right, Corvette engine. The coil on the F-Body is on the left, passenger side of engine. One of the unique visual dominating factors in determining if you have a Corvette engine or F-Body will be the brackets. The Corvette has all of the accessories (Alternator, A/C compressor) on the Left side driver. The F-Body will have the alternator on the right passenger, A/C on the passenger right and the electric air pump on the left. The fuel rail on the intake will not have a crossover tube in the front intake, behind the throttle body, the crossover and supply is located in the rear. The firing order on the LT1 1992-93 was 18436572 which are the same as the old school V8 TPI, TBI and crossfire. The distributor is non-vented, so keep this engine away from water.
1994-1997 LT1 MAFS ( 96 the last year for the Vette) F-Body last year was 1997 LT1 fuel Injection. With all of the above being the same, the addition of a faster Intel based, “Flash” computer processor and the Mass Air Flow Sensor (MAFS). The final adaptation of old theory was erased once the Multi Port Fuel Injection became Sequential Port Multi Fuel Injection (SPMFI). Throughout the next 3 to 4 years the distributor went from non-vented to vented in 1995, with three different timing cover designs and three different distributors from 1992-1997. Speed Scene Wiring can help you acquire the parts you need based on your info. In 1996-97, F-Body the LT1 fuel injection system gained another Hall Effect sensor, known as the Crank Shaft Sensor (CKP). This sensor would just make timing even more precise, which relates to more horse power and better fuel economy / controls. In 1996 the operating system went from ODBI (On Board Diagnostic One) to OBDII (On Board Diagnostic Two). These are the standards, before global organization and federal control for all manufacturers. And after total federal control, with standard of communicating language for all cars in the US. OBDIII soon to come will be big brother, this system will notify you with a set amount of time to fix the manufacturer related problem. If you are not compliant you may find your vehicle or yourself in violation of federal laws / code. The 1996-97 fuel injected LT1 went from 2 heated o2 sensor, to 4 heated O2 sensors, 2 pre heated and two posts heated sensors. In the 1994 Corvette the introduction of the 4L60E transmission was a success, this transmission is basically a 700R4/ 4L60) with an electronically controlled solenoid valve body.