Section 18 (2.2L Systems/Tests W/Codes)
WARNING: This page is about a different car, the 1989 Ford Probe. However, it is still accessible from the selected car via links, so may be relevant.
- Description
- Operation
- Notes
- ECA Input Sensors
- Barometric Pressure (BP) Sensor
- Brake On-Off (BOO) Switch
- Clutch Engage Switch
- Crankshaft Position Sensor (CPS)
- Cylinder Identification (CID) Sensors
- Exhaust Gas Oxygen (EGO) Sensor
- EGR Valve Position (EVP) Sensor
- Electrical Load (E/L) Control Unit
- Engine Coolant Temperature (ECT) Sensor
- Engine Coolant Temperature (ECT) Switch
- Idle Switch
- Knock Control Unit
- Knock Sensor (KS)
- Neutral Gear Switch (NGS)
- Neutral Safety Switch
- Power Steering (P/S) Pressure Switch
- Self-Test Output/Self-Test Input (STO/STI) Connectors
- Throttle Position (TP) Sensor
- Vane Airflow Meter (VAF)
- Vane Air Temperature (VAT) Sensor
- ECA Output Actuators
- A/C Clutch Relay
- By-Pass Air Control (BAC) Valve
- Canister Purge Regulator (CPR) Solenoid Valve
- Exhaust Gas Recirculation (EGR) Control Solenoid Valve
- Exhaust Gas Recirculation (EGR) Valve
- Fuel Injector
- Malfunction Indicator Light (MIL)
- Pressure Regulator Control (PRC) Solenoid Valve
- Turbo Boost Control Solenoid Valve
- Diagnosis & Testing
- Diagnostic Routines
- Diagnostic Routine Charts
- Routine No. 1 - Backfires (Induction Or Exhaust)
- Routine No. 2 - Diesels (Run-On)
- Routine No. 3 - Lacks Power
- Routine No. 4 - Spark Knock Or Ping
- Routine No. 5 - Stalls Or Quits
- Routine No. 6 - Stumbles Or Hesitates On Acceleration
- Routine No. 7 - Misses Or Surges
- Routine No. 8 - Idles Too Fast Or Slow Return To Idle
- Routine No. 9 - Idles Rough
- Routine No. 10 - Engine Speeds Up
- Routine No. 11 - Cranks Normally But Won't Start
- Routine No. 12 - Cranks Normally But Slow To Start
- Routine No. 13 - Poor Fuel Economy
- Routine No. 14 - Overheating
- Routine No. 15 - Exhaust Odor Or Smoke
- Routine No. 16 - Excessive Oil Use
- Routine No. 17 - Fuel Odor Or Leaks
- Routine No. 18 - Fails Emission Test
- Diagnostic Routine No. 19 - Unusual Noises
- Routine No. 20 - "Check Engine" Light Always Or Never On
- Circuit Tests
- How To Use Circuit Tests
- Circuit Test A1 - Ignition Pulse
- Circuit Test A2 - Vehicle Battery
- Circuit Test A3 - Reference Voltage & Signal Return
- Circuit Test B1 - Vane Air Temperature (Vat)
- Circuit Test B2 - Engine Coolant Temperature Sensor
- Circuit Test B3 - Barometric Pressure (BP) Sensor
- Circuit Test B4 - Knock Sensor & Knock Control Unit
- Circuit Test B5 - Throttle Position (TP) Sensor
- Circuit Test B6 - Vane Airflow (VAF) Meter
- Circuit Test B7 - Cylinder Identification Sensor
- Circuit Test B8 - Crankshaft Position Sensor (Cps)
- Circuit Test B9 - EGR Valve Position Sensor (EVP)
- Circuit Test B10 - Neutral Gear Switch & Clutch Engage Switch
- Measuring CES Resistance
- Circuit Test B11 - Neutral Safety Switch (Auto Trans)
- Circuit Test B12 - Vehicle Power
- Testing Power Relay No. 2
- Circuit Test B13 - Brake On-Off Switch (Boo)
- Circuit Test B14 - Idle Switch
- Circuit Test B15 - Air Conditioning Pressure Switch (ACPS)
- Circuit Test B16 - Electrical Load Unit (ELU)
- Circuit Test C1 - Fuel Control
- Circuit Test C2 - Exhaust Gas/Oxygen (Ego) Sensor
- Circuit Test C3 - Fuel Pump Circuit
- Circuit Test D1 - EGR On/Off Control & EGR Control (EGRC)
- Circuit Test D2 - Canister Purge (CANP)
- Circuit Test D3 - Idle Speed Control (ISC) (Bypass Air)
- Circuit Test D4 - Wot A/C Cut-Off (Acc)
- Circuit Test D5 - Turbocharger Boost Control Solenoid Valve
- Circuit Test D6 - EGR Vent (EGRV) Solenoid
- Circuit Test D7 - Pressure Regulator Control (PRC)
- Circuit Test D8 - "Check Engine" Malfunction Indicator Light
- Circuit Test D9 - Code "88" Continuously Flashing
- Circuit Test D10 - No Codes/Codes Not Listed
- Circuit Test D11 - Turbo OVERBOOST Warning Buzzer