WHAT ARE THE SYMPTOMS OF A BAD ECU?

1993 Honda Civic

Tiny

wileecoyote345

March, 25, 2012 AT 8:23 PM

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?

5 Answers

Tiny

rasmataz

March, 25, 2012 AT 8:28 PM

Is the CEL coming On while engine is idling?

Tiny

wileecoyote345

March, 25, 2012 AT 8:30 PM

No, there have been no CEL's.

Tiny

rasmataz

March, 25, 2012 AT 8:33 PM

There's nothing in there to worry about-if something is wrong it'll pop the light

Tiny

wileecoyote345

March, 25, 2012 AT 8:54 PM

So does this mean that my hot start problems are not caused by a bad sensor?

Tiny

rasmataz

March, 25, 2012 AT 8:58 PM

Hot start could be a fuel pressure problem-check it if its within specs

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