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.
1991 Eagle Talon Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Engine Controls - Tests W/Codes - 2.0L
- Introduction
- Self-Diagnostic System
- Notes
- System Diagnosis
- Hard Failures
- Intermittent Faults
- Pretest Inspection
- Entering On-Board Diagnostics (Using Voltmeter)
- Diagnostic Fault Chart
- Diagnostic Procedure (Using DRB-II)
- DRB-II Key Functions
- Entering On-Board Diagnostics Using DRB-II
- DRB-II Error Screens
- System Fault ROM Check Sum XXXX Message
- System Fault Keyboard Failure Message
- SYSTEM FAULT RAM FAILURE XXXX Message
- SYSTEM FAULT EPROM FAILURE Message
- System Failure, Communication Failure, Refer To Diagnostic Procedures Message
- SYSTEM FAILURE NO RESPONSE FROM ADAPTER Or SYSTEM FAILURE ADAPTER REQUIRED TO DIAGNOSE WITH THIS CARTRIDGE MESSAGE
- Fault Codes
- Summary
- Code Charts
- Notes
- NS-1A: Reading Fault Codes & Checking For Spark
- NS-2A: Checking Fuel System
- NS-3A: Checking Fuel Pump
- NS-4A: Repairing Crank Angle Sensor
- NS-5A: Repairing Fuel System
- NS-6A: Repairing Ignition Coil System
- NS-7A: Checking DRB-II Communication
- VER-1: Verification Procedure 1
- Dr-1A: Checking Fault Codes
- Dr-2A: Testing Oxygen Sensor
- Dr-3A: Testing Airflow Sensor
- Dr-4A: Testing Intake Air Temperature Sensor
- Dr-5A: Testing Throttle Position Sensor
- Dr-6A: Testing Coolant Temperature Sensor
- Dr-7A: Testing No. 1 Cylinder TDC Sensor
- Dr-8A: Testing Vehicle Speed Sensor
- Dr-9A: Testing Barometric Pressure Sensor
- Dr-10A: Testing Detonation Sensor
- Dr-11A: Testing Injectors
- Dr-12A: Testing Fuel Pump Sense
- Dr-13A: Testing EGR Temperature Sensor
- Dr-14A: Testing Ignition Coil
- Dr-15A: Testing Switches
- Dr-16A: Testing Sensors
- Dr-17A: Testing Idle Speed Control Actuator
- Dr-18A: Testing Fuel Pressure
- Dr-19A: Testing Purge System
- Dr-20A: Testing EGR System
- Dr-21A: Inspection Of Mechanical System & Components
- Dr-22A: Checking DRB-II Communication
- VER-2: Verification Procedure 2
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.