Chevrolet 1994 Lumina Owner's Manual page 90

Features
&
Controls
Malfunction Indicator
Lamp (Service Engine
Soon Indicator Light)
(CONT)
NOTICE:
If you keep driving your vehicle
with this light on, after a while the
emission controls won't work as
well, your fuel economy won't be as
good and your engine may not run
as smoothly. This could lead to
costly repairs not covered by your
warranty.
I
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