Toyota 2002 Camry Service Manual page 270

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Table of Contents

2002 CAMRY REPAIR MANUAL (RM881U)

ENGINE MECHANICAL

(Fluctuating HC reading)

(Black smoke from exhaust)

ENGINE ASSEMBLY (2AZ–FE)

1. Faulty ignitions:

S Incorrect timing

S Fouled, shorted or improperly gapped plugs

2. Incorrect valve clearance

3. Leaky intake and exhaust valves

4. Leaky cylinders

1. Vacuum leaks:

S Intake manifold

S Throttle body

S Brake booster line

2. Lean mixture causing misfire

1. Restricted air filter

2. Plugged PCV valve

3. Faulty EFI systems:

S Faulty pressure regulator

S Defective water temperature sensor

S DEFECTIVE Air–flow meter

S Faulty ECU

S Faulty injectors

S Faulty throttle position sensor