I have a similar problem with the S3 light flashing and the check engine light coming on as well as surging issues. On '88-'91 Preludes the ECU is located under the carpet on the right passenger floorboard. There will be a small flap in the carpet you pull up to see the ECU LED. Turn the key to ACC(radio on, but not started) and follow the directions on the link below. http://mustardcat.brinkster.net/p3g/Documentation/ECUerrorcodes/ECUcodes.htm
http://howtobyme.blogspot.com/2011/11/automatic-transmission-will-not-go-into.html
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Automatic transmission shift lever
issues?-------
http://technoanswers.blogspot.com/2012/01/automatic-transmission-shift-lever-hard.html
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AUTOMATIC TRANSMISSION FLUID LEVEL? --
http://schematicsdiagram.blogspot.com/2011/07/how-to-check-automatic-transmission.html
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AUTOMATIC TRANSMISSION FLUID AND
FILTER?
http://schematicsdiagram.blogspot.com/2011/07/how-to-change-automatic-transmission.html
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Transmission fault light on
car dash?
http://schematicsdiagram.blogspot.com/2011/12/transmission-fault-light-on-car-dash.html
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Transmission shifting
problem?
http://schematicsdiagram.blogspot.com/2012/01/transmission-shifting-problem-on-toyota.html
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Transmission Slips out of 2nd gear?
http://repairhelpcenter.blogspot.in/2012/02/transmission-slips-out-of-2nd-gear.html
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OD light flashing and transmission fluid
leaking?
http://repairhelpcenter.blogspot.in/2012/02/od-light-flashing-and-transmission.html
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Why Transmission fluid leaks near radiator?
http://repairhelpcenter.blogspot.in/2012/02/transmission-fluid-leaks-near-radiator.html
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Transmission fluid leaking?
http://technoanswers.blogspot.in/2012/02/ford-windstar-transmission-fluid.html
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****** wont go in reverse?
http://technoanswers.blogspot.in/2012/02/dodge-neon-wont-go-in-reverse.html
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Automatic transmission will not go into
reverse?
http://technoanswers.blogspot.in/2012/02/dodge-automatic-transmission-will-not.html
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Transmission is making buzzing noise?
http://technoanswers.blogspot.in/2012/02/transmission-is-making-buzzing-noise.html
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This
will help.
Thanks.
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