Symptom Index - Definitions

SYMPTOM
hard Start
Diagnostic Test
- CHECKING THE FUEL PRESSURE
- CHECKING COOLANT SENSOR CALIBRATION
- CHECKING THROTTLE POSITION SENSOR CALIBRATION
- CHECKING COOLANT SENSOR CALIBRATION
- CHECKING MAP SENSOR CALIBRATION
- CHECKING THE MINIMUM IDLE AIR FLOW
- CHECKING IDLE AIR CONTROL MOTOR OPERATION
- CHECKING EVAP EMISSION SYSTEM
- CHECKING IAT SYSTEM

Start and Stall
- CHECKING PCM POWER AND GND CKT
- 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

Hesitation/Sag/Stumble
- CHECKING PCM POWER AND GND CKT
- 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
- CHECKING IAT SENSOR

Surge
- CHECKING PCM POWER AND GND CKT
- 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 GND CKT
- 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

Engine Stalls In Gear
- CHECK TCC OPERATION

Spark Knock/Detonation
- CHECKING PCM POWER AND GND CKT
- 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

Cuts Out/Misses
- CHECKING PCM POWER AND GND CKT
- CHECKING THE FUEL PRESSURE
- CHECKING THE MINIMUM IDLE AIR FLOW
- CHECKING IDLE AIR CONTROL MOTOR OPERATION

Backfire/Popback
- CHECKING PCM POWER AND GND CKT
- CHECKING THE FUEL PRESSURE
- CHECKING MAP SENSOR CALIBRATION
- CHECKING THE MINIMUM IDLE AIR FLOW

Runs Rough/Unstable/Erratic Idle
- CHECKING PCM POWER AND GND CKT
- 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 ENGINE MECHANICAL SYSTEMS
- CHECKING EVAP EMISSION SYSTEM
- CHECKING IAT SENSOR

Poor Fuel Economy
- CHECKING PCM POWER AND GND CKT
- CHECKING THE FUEL PRESSURE
- CHECKING COOLANT SENSOR CALIBRATION
- CHECKING THROTTLE POSITION SENSOR CALIBRATION
- CHECKING THE MINIMUM IDLE AIR FLOW
- CHECKING IDLE AIR CONTROL MOTOR OPERATION
- CHECKING EVAP EMISSION SYSTEM
- CHECKING IAT SENSOR