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Should the engine warning lamp be illuminated when the engine is running on a 1995 Opel Astra?


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2008-06-19 06:13:25
2008-06-19 06:13:25

The light is illuminated because the ECU has picked up a fault on the engine management system, and has stored a fault code. You need to diagnose & rectify the fault for the light to be extinguished.

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The engine would be running poorly and the check engine light should be illuminated with related codes.

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It depends on why the light is illuminated. The only way to find out is with a scan tool.

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Check to see if the alternator is working Connect a voltmeter to battery: Without engine running reading should be about 12.8 With engine running reading should be 13.8-14.2 If not bad alternator

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A damaged timing belt would stop the engine from running probably with no warning. If you should have an "interference engine" it would basically destroy the engine.

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By "OFF," I have to assume that your question means that the ignition switch is "ON", but the engine is not running. IF that is what your question means, then the reason the engine warning lights turning on is that the manufacturer designed the system that way to show you that those warning circuits and lights are working, and ready to warn you after you start the engine, should there be a failure in one of the systems they represent.


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