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1997 Oldsmobile Cutlass Supreme Question: How can I reset the "Service Engine Soon Light"

 

Question

garageman, Janesville, WI, June 23, 2010, 08:11
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How can I reset the "Service Engine Soon" light ? I disconnected the Air Flow Sensors and started the car several times while I was working on it. The repairs are finished and the "Sensors" have been reconnected. However,
the "Service Engine Soon" light stays on after the car is started.

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  • Answer #1

    mastertech6371 June 23, 2010, 08:21
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     Master

    after it passes its internal tests 3 times, it will reset itself. if it persistes, then there is a problem. it could take up to a few days before it will clear.
    you can try removing the negative cable for about 10 seconds but that may or may not clear the code.

    Roy

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    garageman, June 24, 2010, 17:41
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    Very GOOD Guys !! Just as you said, the "Service Engine Soon" light turned itself off after one (1) day. Thanks ever so much for the help.
    Garageman

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  • Answer #2

    Visitor, November 15, 2010, 13:10

    I have 1997 Dodge Grand Caravan. I have had the engine tune up, changed the upper sensor, egr valve still service engine soon light stays on

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  • Answer #3

    Visitor, November 30, 2010, 14:26

    turn the key on without starting,press the excelerator all the way to the floor 3 times.the light should go off.

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