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Old 08-14-2007, 12:49 AM   #1
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Default GXP and SLE Overall Tire/Wheel Size, DIfferent?

I installed a GXP guage cluster last spring and my odometer was correct buy speedometer reading was incorrect. This was after changing the chip in the cluster, old chip in new cluster. I then put the new chip back in the new GXP cluster and the speedometer reading was correct but the odo was incorrect and I get a low coolant light on startup. The only other member with this cluster(that I know of) is leftd90 and everything works OK for him with the old chip in it. The difference between our cars is that his has GXP rims and tires whereas I am running the stock 17'* with stock tires. Is the overall size of the GXP wheel different than my wheel, causing a change in the speedometer reading. I guess I am asking if the installation of stock GXP wheels/tires will solve my problem. Any answers?
Thanks in advance,
Grant
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Old 08-14-2007, 01:15 AM   #2
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Default Re: GXP and SLE Overall Tire/Wheel Size, DIfferent?

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Originally Posted by *B2*
I installed a GXP guage cluster last spring and my odometer was correct buy speedometer reading was incorrect. This was after changing the chip in the cluster, old chip in new cluster. I then put the new chip back in the new GXP cluster and the speedometer reading was correct but the odo was incorrect and I get a low coolant light on startup. The only other member with this cluster(that I know of) is leftd90 and everything works OK for him with the old chip in it. The difference between our cars is that his has GXP rims and tires whereas I am running the stock 17'* with stock tires. Is the overall size of the GXP wheel different than my wheel, causing a change in the speedometer reading. I guess I am asking if the installation of stock GXP wheels/tires will solve my problem. Any answers?
Thanks in advance,
Grant
Actually when i reported that the MPH was correct, i think i had the gxp odometer chip in there. And now that i have the correct mileage with my old chip, i have noticed a change in mph but its not a huge difference.
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Old 08-14-2007, 02:00 PM   #3
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Thanks alot. I didn't realize that. I thought yours was spot on so I wanted to copy it as close as possible.
Grant
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