Symptom Index - Definitions

SYMPTOM DIAGNOSTIC TEST

Hard Start Checking The Fuel Delivery
Checking Coolant Sensor Calibration
Checking Throttle Position Sensor Calibration
Checking MAP Sensor Calibration
Checking The Minimum Idle Air Flow
Checking Idle Air Control Motor Operation
Checking EVAP Emission System
Checking IAT Sensor

Start And Stall Checking PCM Power And Ground Circuit
Checking The Fuel Delivery
Checking Coolant Sensor Calibration
Checking Throttle Position Sensor Calibration
Checking MAP Sensor Calibration
Checking The Minimum Idle Air Flow
Checking Idle Air Control Motor Operation

Hesitation/Sag/Stumble Checking PCM Power And Ground Circuit
Checking The Fuel Delivery
Checking Coolant Sensor Calibration
Checking Throttle Position Sensor Calibration
Checking MAP Sensor Calibration
Checking The Minimum Idle Air Flow
Checking Idle Air Control Motor Operation
Checking EVAP Emission System
Checking IAT Sensor

Surge Checking PCM Power And Ground Circuit
Checking The Fuel Pressure
Checking Coolant Sensor Calibration
Checking Throttle Position Sensor Calibration
Checking MAP Sensor Calibration
Checking The Minimum Idle Air Flow
Checking Idle Air Control Motor Operation
Checking EVAP Emission System

Lack Of Power/Sluggish Checking PCM Power And Ground Circuit
Checking The Fuel Delivery
Checking Coolant Sensor Calibration
Checking Throttle Position Sensor Calibration
Checking MAP Sensor Calibration
Checking The Minimum Idle Air Flow
Checking Idle Air Control Motor Operation

Spark Knock/Detonation Checking PCM Power And Ground Circuit
Checking The Fuel Delivery
Checking Coolant Sensor Calibration
Checking Throttle Position Sensor Calibration
Checking MAP Sensor Calibration
Checking The Minimum Idle Air Flow
Checking Idle Air Control Motor Operation
Checking EVAP Emission System

Cuts Out/Misses Checking PCM Power And Ground Circuit
Checking The Fuel Delivery
Checking The Minimum Idle Air Flow
Checking Idle Air Control Motor Operation

Backfire/Popback Checking PCM Power And Ground Circuit
Checking The Fuel Delivery
Checking MAP Sensor Calibration
Checking The Minimum Idle Air Flow

Runs Rough,
Unstable/Erratic Idle Checking PCM Power And Ground Circuit
Checking The Fuel Delivery
Checking Coolant Sensor Calibration

Engine Stalls In Gear Check TCC Operation
Checking Throttle Position Sensor Calibration
Checking MAP Sensor Calibration
Checking The Minimum Idle Air Flow
Checking Idle Air Control Motor Operation
Checking EVAP Emission System
Checking IAT Sensor

Poor Fuel Economy Checking PCM Power And Ground Circuit
Checking The Fuel Delivery
Checking Coolant Sensor Calibration
Checking Throttle Position Sensor Calibration
Checking MAP Sensor Calibration
Checking The Minimum Idle Air Flow
Checking Idle Air Control Motor Operation
Checking EVAP Emission System
Checking IAT Sensor