Yo Robert,
Welcome!
We have a 96, bought new. OBD II has well documented tests available to us DIYers vs previous years.
The firing order for 87-93 5.0 vehicles is 1-5-4-2-6-3-7-8. If #7 and #8, or #2 and #4 spark plug wires are routed next to each other at the separation bracket, an induction crossfire condition can occur. Distributor rotation: Counterclockwise ----------
The firing order for 1994 through 1996 5.0 and 5.8 vehicles is 1-3-7-2-6-5-4-8. On these vehicles the #1 and #3, or #5 and #6 spark plug wires must be separated to eliminate the possibility of an induction crossfire. To eliminate the possibility of the coil wire becoming disconnected, route the coil wire under the spark plug wires at the distributor cap. Distributor rotation: Counterclockwise
Source: by Tank92 (Tank)
96 is same as most earlier years especially 92-95, except for:
92 through 95 uses the Electronic Engine Control, version Four (EEC-IV, aka On Board Diagnostics (OBD-I)) engine management computer.
96 uses the OBD-II (EEC-V) engine management computer;
4WABS (93-96);
RABS (87-92);
Air Bag (94-96);
3 Heated Exhaust Gas Oxygen Sensors in 96 Federal emissions and one more in 96 California Emissions
3 ***** Automatic Locking Hubs (Built from May 95 through 96); Spark Plug Wire Routing & Firing Order (The firing order for 1987-1993 5.0Ls is 1-5-4-2-6-3-7-8. The firing order for 1994- 96 5.0Ls & all 5.8Ls is 1-3-7-2-6-5-4-8.);
R134a in 94-96;
2-piece Spindle Rolling Diaphragm Seal (RDS) used on 5/95 to 96 Broncos & F Series 1/2-ton 4WD;
Ford added Crankshaft Position Sensor, aka misfire detection sensor and the tone ring in 96. The misfire sensor is an electromagnetic inductance coil similar in operation to a camshaft or crankshaft position sensor. A four-point stator, or pulse ring, located behind the crankshaft damper generates an electrical impulse in the sensor at each 90 degrees of rotation. The powertrain control module (PCM) (12A650) monitors the sensor pulses and flags any misfire events. When a specified number of misfires occur within a certain time frame, the powertrain control module will alert the driver to the condition by turning on the CEL.
Most 92-95 Speed Density (SD) EFI uses a Manifold Absolute Pressure Sensor (MAP), a Throttle Position Sensor (TPS) & an Air Intake Temperature Sender (ACT) that gives the engine certain volumetric efficiencies over it's RPM range. SD EFI also uses what is called bank fire injection. 4 injectors are fired at one time on each side of the engine (only 2 wires for firing injectors from EEC-IV).
Mass Air Electronic Fuel Injection (MAF), aka Sequential Electronic Fuel Injection (SEFI):
in all 94 5.0 & 95 5.0
most 95 5.8 are SD
95 5.0 & 4.9 & 5.8 California models are MAF
and all 96s are MAF.
Need to verify other Bronco years/engines.
Mass Air directly reads the mass of air (or number of molecules of air). By doing this, it can detect the changes in the volume of air, in addition to it's pressure & temperature. Mass air has one separate wire for each injector & fires them twice for every power stroke of the engine. This makes the injector timing more accurate & will help emissions along with power.
96 5.8 do not have the Air Injection (AIR), Secondary Air Injection; Pump (Smog Pump), Thermactor Air Bypass (TAB) & Thermactor Air Diverter (TAD) Solenoids; Diverter, Check & Bypass Valves, Cross-Over Tube, etc. But 96 5.0 does have the system.
Only 95 5.8L California models & all 96 have the Differential Pressure Feedback (DPFE) Sensor instead of EGR Valve Position (EVP) Sensor.
The 96, Vapor Management Valve (VMV) replaces the canister purge valve (CanP valve) used in EEC IV. But the 96 manual still shows CanP valve probably because it was a late addition to the 96 production line.
The Speed Control Deactivation Switch (SCDS) in a 93 Bronco is located on the driver side frame rail, but in 94 through 96 it is on the master cylinder.
Still researching other differences.
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1990 302 5.0 to 1996 5.0 302 swap Parts Differences COMPENDIUM:
92 through 95 uses the Electronic Engine Control, version Four (EEC-IV, aka On Board Diagnostics (OBD-I)) engine management computer.
96 uses the OBD-II (EEC-V) engine management computer;
Ford added Crankshaft Position Sensor, aka misfire detection sensor and the tone ring in all 96 Broncos. The misfire sensor is an electromagnetic inductance coil similar in operation to a camshaft or crankshaft position sensor. A four-point stator, or pulse ring, located behind the crankshaft damper generates an electrical impulse in the sensor at each 90 degrees of rotation. The powertrain control module (PCM) (12A650) monitors the sensor pulses and flags any misfire events. When a specified number of misfires occur within a certain time frame, the powertrain control module will alert the driver to the condition by turning on the CEL.
Location pic Misfire Sensor in a 96 next to the pointer by
92-95 Speed Density (SD) EFI uses a Manifold Absolute Pressure Sensor (MAP), a Throttle Position Sensor (TPS) & an Air Intake Temperature Sender (ACT) that gives the engine certain volumetric efficiencies over it's RPM range. SD EFI also uses what is called bank fire injection. 4 injectors are fired at one time on each side of the engine (only 2 wires for firing injectors from EEC-IV).
All 96s are MAF.
Mass Air directly reads the mass of air (or number of molecules of air). By doing this, it can detect the changes in the volume of air, in addition to it's pressure & temperature. Mass air has one separate wire for each injector & fires them twice for every power stroke of the engine. This makes the injector timing more accurate & will help emissions along with power.
MAF Sensor pic in a 95 58 w/CALIF Emissions, same location as a 96 5.0
by Subrubicon16
96 5.0 has the Air Injection (AIR), Secondary Air Injection; Pump (Smog Pump), Thermactor Air Bypass (TAB) & Thermactor Air Diverter (TAD) Solenoids; Diverter, Check & Bypass Valves, Cross-Over Tube, etc.
Pic by Seattle FSB in a 90.
Keep them all.
