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Old 10-11-2004, 01:34 AM   #1
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Default speed signal out of the ECM

I am curently adapting a 95 SSEI insterment panel into a 92 bonneville SE, and i was wondering what the nature of the output of the ECM'* speed signal is, (freq modulated, or mili voltage, or other) the reason I need to know this is bacause i want the milage on the new IP to be accurate, (ill power up the new dash and run a determinted speed of like 130 MPH untill my odometer goal is reached)......... crazy I know......any responces would be appreciated,

P.*. if anyone is parting out there SSEI bonne and wants to get rid of the compass module and adaptive light module i will be a willing buyer,

thanks again,
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