What are the symptoms of a bad ecu?

1993 HONDA CIVIC
173,000 MILES
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WILEECOYOTE345
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I have been having some hot start problems and I tried to see if there were any check engine light (cel) codes on the ecu, so I took the jumper plug (aka the service connector) on the ecu and inserted a paperclip into both holes of the connector. Then I turned the ignition key to position II to see if the cel would flash codes. But when I turned the key to position II the cel stayed on steady. What does this mean?
Mar 25, 2012 at 1:23 PM
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RASMATAZ
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Is the CEL coming On while engine is idling?
Mar 25, 2012 at 1:28 PM
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WILEECOYOTE345
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No, there have been no CEL's.
Mar 25, 2012 at 1:30 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
There's nothing in there to worry about-if something is wrong it'll pop the light
Mar 25, 2012 at 1:33 PM
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WILEECOYOTE345
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  • 6 POSTS
So does this mean that my hot start problems are not caused by a bad sensor?
Mar 25, 2012 at 1:54 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Hot start could be a fuel pressure problem-check it if its within specs
Mar 25, 2012 at 1:58 PM
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