#2002 FORD F250 DIESEL 7.3 INJECTOR DRIVER MODULE LOCATIO MANUAL#
Everything from 1994 through 1997 got a ZF 5-Speed manual transmission or an E4OD automatic transmission.
Second is 1997 California F-Series and 1997 Vans, which use a DPC-31x PCM. We break the 7.3 down into 4 generations:įirst is the 1994.5-1997 F-Series trucks and 1994.5-1996 E-Series vans, which use a DPC-20x PCM. In the Hydraulic Electronic Unit Injector (HEUI) system on the Power Stroke, the force for activating the plungers in the injector came from engine oil pressurized by a High Pressure Oil Pump (HPOP), while when the injectors actually fired, how long they fired for, and at what pressure they injected the fuel, was all controlled by the Powertrain Control Module (PCM). In other words, in a PLN system, the plungers are mechanically activated by a cam in the pump, and in a MUI system the plungers are activated by a cam on the injectors. Prior to this, most diesels used either an injection pump that metered fuel to each injector, often called a Pump-Line-Nozzle system (PLN), or a Mechanical Unit Injector (MUI) where each cylinder had its own injector, but the injectors were activated by a camshaft or rocker arm system the activated a plunger in the injector to pressurize the fuel. The other new technology it pioneered was electronically controlled, independent injectors. With the Power Stroke, the injection timing became infinitely variable: there were timing maps (lookup tables) that adjusted the injection timing for any altitude from sea level to 10,000', for any oil temperature from -10* to +290*, for any boost from zero to 21 PSI, and any injected fuel quantity from zero to 100 mg/cyl, and more.on the fly, updating the value every engine revolution. It was 12* at zero PSI of boost, and it was 12* at 25 PSI of boost. It was 12* at -20*F below zero, and it was 12* at 250*F engine coolant temperature. You set it at 12* BTDC at idle, and it was still 12* BTDC at 3,000 RPM. Before then, the injection timing on a diesel was essentially fixed. It's biggest distinction at the time is that it was the first computer controlled diesel engine sold in the United States.Ī computer controlled diesel is the norm now then it was revolutionary. Other than being 7.3 liters, not one single part is the same. It was considered to be the successor to the 7.3L Indirect Injection, although the only thing the two engines have in common is their displacement. The 7.3L Power Stroke engine was released in the summer of 1994. The single biggest killer is people pulling their chips out with the key on, frying the microprocessor, and often the EEPROM and chip. All in all, they are very well designed and normally last hundreds of thousands of miles. The PCM (Powertrain Control Module) is the main computer that controls the engine, and the transmission if it is an automatic.