Operation CHARM
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Peugeot
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1991
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405 L4-1905cc 1.9L
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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Excessive Fuel Consumption
Excessive Fuel Consumption
1.
Check
idle speed
and
fuel pressure
.
2.
Check air flow sensor,
[1]
[2]
engine temperature sensor
and injector operation.
3.
Check compression pressure, then retest vehicle with new ECU.