The check engine light on a 1993 Acura Legend may dim due to a weak electrical connection, a failing bulb, or a fluctuation in the vehicle’s electrical system, such as a weak battery or alternator issue. It may also indicate that the engine control module is not receiving consistent signals. Any irregularities in the vehicle's performance or diagnostics should be addressed promptly to avoid potential engine problems. Consider having the vehicle scanned for trouble codes to identify the underlying issue.
take it to your mechanic so he can run a diagnostic.
When the check engine light is on, the computer sets a fault code. Most auto parts stores will check this code for free and tell you how to fix it.
It means the ECU has detected a problem with the emissions system.
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To check the check engine light codes on a 1988 Acura Legend, you need to locate the diagnostic connector under the dashboard near the driver's side. Use a jumper wire to connect the two terminals marked "TEN" and "GRD." Turn the ignition key to the "ON" position without starting the engine, and the check engine light will blink to indicate the trouble codes. Count the blinks to decipher the specific codes, which can then be referenced in a service manual for troubleshooting.
The check engine light comes on for numerous faults found by the computer. You will have to have the code pulled to find out why it is flashing. Most auto parts stores will do this at no cost.
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Check your engine, or refer to owners manual.
The check engine light comes on when you turn the key to the on position to show you that it is not burnt out. If it doesn't come on for that brief period then the bulb just needs to be replaced.
Replace bulbs Check the fuse Check the stop light switch
Ron barfield