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turbo 400, speedo questions

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Old 01-02-2012, 03:24 PM
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Default turbo 400, speedo questions

how the hell do i get my speedo back to normal...
i had to disconnect the speedo to go down the track cause at 55 the speedo was hitting 155 and shutting the car off ..
how do i get my speedo back to accurate with a normal reading??
ive heard theres little plastic gears in the tailshaft where the speedo cable hooks up at that may need to be changed out ??

is this something that can be fixing through a tune ??

its a 2001 camaro m6 , with a turbo 400 and 3800 stall on 3.42s
Old 01-02-2012, 04:00 PM
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Do you have the modified tailhousing that has the VSS for the 400 in it? Or did you tap into the ABS wires?
Old 01-02-2012, 04:13 PM
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im guessing i have the vss tail housing..
since the 6 speed harness sensor plugs right into the side of it??
vss= variable speed sensor ?
Old 01-02-2012, 04:41 PM
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Sounds like it needs the pulses modified in the tune then.
Old 01-02-2012, 04:47 PM
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what exactly do you mean by the pulses ?
like if i call any tune shop.. and say i need my pulses modifed cause my speedo is way off , are they gonna understand ?

any places you recommend ?
Old 01-02-2012, 07:51 PM
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Find out who made the conversion and call and ask them if anything has to be modified.




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