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C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

H72 speed sensor

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Old Jul 15, 2010 | 03:31 PM
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shhaker's Avatar
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Default H72 speed sensor
im getting a speed sensor failure code H72. what does this mean to me? im running 373 gears. my speedo woorks but its not correct due to the gear swap. thanks!!
Last edited by shhaker; Jul 15, 2010 at 03:56 PM.
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Old Jul 15, 2010 | 03:39 PM
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what year car?

94 and up can be electronically changed.
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Old Jul 15, 2010 | 03:55 PM
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sorry its a 95 lt1. i know i can buy a programmer for it but havent got one yet, i didnt do the gear changed i got it that way. also with the ac off at idle with the engine warming up 170-180 should one of the fans be on ?
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Old Jul 15, 2010 | 11:09 PM
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Originally Posted by shhaker
with the ac off at idle with the engine warming up 170-180 should one of the fans be on ?
No
Stock settings for main fan is are 225(ish ) F
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