Diesel Data
: Automotive Repair
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Toyota Truck
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1991
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4 Runner 4WD L4-144.4 2366cc 2.4L SOHC (22R-E)
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Repair and Diagnosis
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Powertrain Management
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Ignition System
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Testing and Inspection
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Component Tests and General Diagnostics
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Electronic Control Unit (ECU)
Electronic Control Unit (ECU)
The ECU controls the
ignition timing
, fuel injection, and
emission control systems
. For further information on the ECU, refer to
Computers and Control Systems
.