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T56 speed sensor question

 
Old 01-25-2019, 01:08 PM
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I have a LS3 running the early 24x crank and 1x cam ECU with a T56 transmission. I have no fault codes but when I come to a stop my idle stays up around 1200 rpm for 2 to 5 seconds before it drops to normal idle. Can this possibly be a symptom of a bad speed sensor? It runs fine otherwise. Thank you!
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Old 01-25-2019, 03:07 PM
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you have a log file with that happening?
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Old 01-25-2019, 06:36 PM
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Sorry, but not sure what you mean by a "log file". I do not have a fault code from whatever is happening. Thanks
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Old 02-03-2019, 03:50 AM
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Thats how my 02 M6 TA was after the engine swap/dyno tune was done...was told it hangs the idle up for a few seconds until the speed sensor verified the car came to a complete stop then the idle starts to decay down to normal.....this was big cam/big cable hrottle body way to get it to cime down to a nice idle......its all adjustable with hptuners somehow
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