Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1996ECONOLINE E250, VAN CARGO EXTENDED, 5.8 HREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - TESTS W/CODES - 5.8L EEC-V
1996 Ford Econoline E250, Van Cargo Extended, 5.8 H
Engine Controls - Tests W/Codes - 5.8L EEC-V
1996 Ford Econoline E250, Van Cargo Extended, 5.8 HSECTION Engine Controls - Tests W/Codes - 5.8L EEC-V
- Introduction
- Self-Diagnostic System
- Quick Test
- Additional System Functions
- Notes
- Generic OBD-II Parameter Identification (PID)
- Non-Generic OBD-II Parameter Identification (PID)
- On-Board System Readiness (OSR) Test Mode
- Freeze Frame Data Mode
- Oxygen Sensor Test Mode
- Output Test Mode
- Failure Mode Effects Management (FMEM)
- Hardware Limited Operational Strategy (HLOS)
- On Board Diagnostic II Monitors
- OBD-II Sensor Illustration Description
- Catalyst Efficiency Monitor (Steady State)
- Catalyst Efficiency Monitor Federal Test Procedure
- Comprehensive Component Monitor
- Evaporative Emission System Monitor
- Exhaust Gas Recirculation Monitor/Differential Pressure Feedback EGR
- Fuel System Monitor
- Heated Oxygen Sensor Monitor
- Misfire Detection Monitor
- Secondary Air Injection System Monitor (Electric Air Pump System)
- Secondary Air Injection System Monitor (Belt Driven Air Pump System)
- Drive Cycles
- Summary
- Diagnostic Trouble Code (DTC) Reference Chart
- Circuit Tests
- Notes
- How To Use Circuit Tests
- Circuit Test A - No Start Vehicle Will Not Start
- Circuit Test B - EEC-V Power Relay
- Circuit Test C - Reference Voltage
- Circuit Test DA - Temperature Sensor Test (IAT & ECT)
- Circuit Test Db - Engine Fuel Temperature (Eft) Sensor
- Circuit Test Dc - Mass Airflow (MAF) Sensor
- Circuit Test Dd - Injection Pressure (IP) Sensor
- Circuit Test DF - Vehicle Speed Circuit (VSC) Check
- Circuit Test Dg - Knock Sensor (KS)
- Circuit Test DH - Throttle Position (TP) Sensor
- Circuit Test DJ - Programmable Speedometer/Odometer Module (PSOM)
- Circuit Test DK - Misfire Detection (MD) Sensor
- Circuit Test DL - Cylinder Head Temperature (CHT) Sensor
- Circuit Test DP - Vehicle Speed Sensor (VSS)
- Circuit Test Dr - Cylinder Identification (CID) Circuit
- Circuit Test DS - Air Conditioning Pressure (ACP) Sensor
- Circuit Test DT - Power Steering Pressure (PSP) Sensor
- Circuit Test FB - Power Take Off (PTO)
- Circuit Test FD - Brake On-Off (Boo) Switch
- Circuit Test FE - Electrical Load Inputs
- Circuit Test Ff - Power Steering Pressure (PSP) Switch
- Circuit Test FG - Octane Adjust
- Circuit Test H - Fuel Control
- Circuit Test HC - Fuel Delivery System
- Circuit Test Hd - Misfire Monitor
- Circuit Test He - EGR System
- Circuit Test Hf - Catalyst Efficiency Monitor & Exhaust Systems
- Circuit Test Hg - PCV System
- Circuit Test HM - Secondary Air Injection (Air) System
- Circuit Test Ht - Traction Assist (Ta) System
- Circuit Test HU - Air Intake System
- Circuit Test HW - Evaporative Emission Purge Flow System
- Circuit Test HX - Evaporative Emission (EVAP) Monitor & System
- Circuit Test JB - Ignition Misfire Under Load
- Circuit Test JD - Integrated Ignition-No Start
- Circuit Test JE - Integrated Ignition Coil Failure
- Circuit Test Jg - Distributor Ignition
- Circuit Test KA - Fuel Pump Relay
- Circuit Test Kc - Fuel Shutoff Valve Relay
- Circuit Test KE - Idle Air Control (IAC) Valve
- Circuit Test Km - Wot A/C Cut-Off (WAC)
- Circuit Test MB - Output Test Mode Not Functioning
- Circuit Test MC - Spark Output Check
- Circuit Test MD - Integrated Spark Output Check
- Circuit Test NB - Malfunction Indicator Light (Mil)
- Circuit Test NC - Ignition Diagnostic Monitor (IDM)
- Circuit Test ND - Engine Rpm/Vehicle Speed Limiter
- Circuit Test QA - Unable To Activate Self-Test/SCP Communication Error Code Not Listed
- Circuit Test QB - Diagnostic Trouble Code P0603/P1605
- Circuit Test QC - Diagnostic Trouble Code P1000
- Circuit Test QD - Diagnostic Trouble Code P1260
- Circuit Test Ta - Park & Neutral Position (PNP) Switch Clutch Pedal Position (CPP) Switch
- Circuit Test Tb - Transmission Control Switch (TCS)/Transmission Control Indicator Lamp (TCIL)
- Circuit Test TC - Transmission Solenoids
- Circuit Test TD - Transmission Range (Tr) Sensor
- Circuit Test Te - Transmission Fluid Temperature (TFT) Sensor
- Circuit Test TF - Output Shaft Speed (OSS) Sensor Turbine Shaft Speed (TSS) Sensor
- Circuit Test Z - Intermittent
- Wiring Diagrams
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.