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Thread: Question on T56 speed sensor
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01-25-2019 #1
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Question on T56 speed sensor
I have an LS3 with early 24x crank and 1x cam sensor ECM. When I come to a stop my idle stays up around 1200 rpm for 2 to 5 seconds before it drops to the normal idle. Does anyone know if a bad speed sensor in my T56 transmission can cause this to happen? Runs runs fine otherwise. Thank you!
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01-27-2019 #2
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Do you have a VSS signal from the trans to the ECM?
You might try the guys over LStech.com. They good at helping out.
01-27-2019 #3
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Should I assume I have a signal if my speedo is working fine??
01-27-2019 #4
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Are you using drive by wire?
01-28-2019 #5
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2001 version; 24x cable throttle
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