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speedometer broken

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Old 07-04-2011, 02:09 AM
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Default speedometer broken

hello all:

my 2002 camaro's speedometer is broken. it only moves to 1/3 of my actual speed (if im going 60 it will show 20)


i have 4.10 gears - if that helps diagnose the problem...

my friend says it is likely a speed sensor?

can anyone help me with this issue?
Old 07-04-2011, 05:10 AM
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yes you need to recalibrate your PCM if you've changed your gears .. your speedo is off.
get hp tuners or a mail order tune to get it fixed.
Old 07-04-2011, 06:37 PM
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Originally Posted by cemlsx
yes you need to recalibrate your PCM if you've changed your gears .. your speedo is off.
get hp tuners or a mail order tune to get it fixed.
i forgot to add that my speedometer worked totally fine up until a couple months ago - that means my speedo must have been calibrated already huh?
Old 07-07-2011, 10:49 PM
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Check for BCM codes.



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