TD5 Defender
ENGINE MANAGEMENT SYSTEM
19
DESCRIPTION AND OPERATION
The EUI can fail if one or more of the following occurs:
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Open circuit.
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Short circuit to voltage supply.
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Short circuit to vehicle earth.
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Wiring loom fault.
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Connector water ingress.
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Connector failure due to excess heat.
In the event of an EUI failure, any of the following symptoms may be observed:
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Engine misfire.
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Idle faults.
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Reduced engine performance.
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Reduced fuel economy.
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Difficult cold start.
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Difficult hot start.
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Excess smoke.
