ENGLISH 49 / 49CHAP.7 – USE OF THE INSTRUMENT
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7.1.7.5 ENGINE WARMING-UP EFFICIENCY
This test begins with a warning for the operator
The exhaust fumes are sampled at regular intervals after the engine (which must idle)
has started.
At the end of the test, which lasts 15 minutes, the operator must visually check that
emissions of the four gases have dropped between the instant the engine fired to the
time when the correct engine operating temperature has been reached.
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