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1.4L TBI System
1.4L TBI System
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Description
Operation
System Overview
Electronic Control Unit (Ecu)
Sensors & Switches
Oxygen (O2) Sensor
Manifold Air Temperature (MAT) Sensor
Coolant Temperature Sensor
Manifold Absolute Pressure (MAP) Sensor
Wide Open Throttle (WOT) Switch
Closed Throttle (Idle) Switch
Throttle Position Sensor (TPS)
Park/Neutral (P/N) Switch
A/C Switch
Crankshaft Position Sensor
Fuel Control
Emission Control
Idle Speed Control (ISC)
Ignition Advance Control
Testing
Preliminary Checks
System Diagnosis
Notes
Code 1
Code 2
Code 3
Code 4
Code 5
Code 6
No Test Bulb Flash
Continuous Fuel Pump Operation
Poor Idle When Started Cold
Erratic Idle Speed
Battery Loses Charge With Key Off
Poor Idle, Oxygen Sensor Inactive
Engine Will Not Start
Engine Starts But Will Not Idle
Poor Fuel Economy/Driveability
Component Testing
Notes
Manifold Air Temperature (Mat) Sensor
Coolant Temperature Sensor
Wide Open Throttle (Wot) Switch
Closed Throttle Switch
Manifold Absolute Pressure (Map) Sensor
Oxygen Sensor
EGR & Canister Purge Solenoids
Idle Speed Control (ISC) Motor
Electronic Control Unit
Removal & Installation
Throttle Position Sensor (TPS)
Removal & Installation
Idle Speed Control (ISC) Motor & Wide Open Throttle (Wot)
Notes
Removal & Installation
Electronic Control Unit
Removal & Installation
Oxygen Sensor
Removal
Installation
Manifold Air Temperature (Mat) & Manifold Absolute Pressure (Map) Sensors
Removal & Installation
Coolant Temperature Sensor (Cts)
Removal & Installation
EGR & Canister Purge Solenoids
Removal & Installation
Adjustments
Notes
Idle Speed Control (ISC) Motor
Wide Open Throttle Switch
Wiring Diagrams