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98 pcm tire/gear wizard and 4:10 problem.

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Old 02-20-2017, 03:41 PM
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Default 98 pcm tire/gear wizard and 4:10 problem.

I'm trying to get the speedometer correct for 4:10's with hptuners. My tire is a 25.55 so I want to enter lower than a 6.3(lowest setting). I have the newest version of hptuners but on the lowest setting I'm 4mph off. Is this just because of the 98 pcm? Can this be done without the wizard somehow?
Old 02-22-2017, 04:25 PM
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I switched to an 0411 pcm with my 98 swap, so I am not sure if this will help, but I imagine it must be similar (scaling the VSS signal)

http://www.hptuners.com/forum/showth...ing-VSS-Signal
Old 02-23-2017, 12:22 PM
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Originally Posted by handyandy496
I'm trying to get the speedometer correct for 4:10's with hptuners. My tire is a 25.55 so I want to enter lower than a 6.3(lowest setting). I have the newest version of hptuners but on the lowest setting I'm 4mph off. Is this just because of the 98 pcm? Can this be done without the wizard somehow?
You'll have change it manually in the speedo section.
Old 02-23-2017, 04:10 PM
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I went to speedo section and changed the hardware setting to 39.0 from 40.0 That let me use the tire wizard down to the 6.1's. Cool! Now I don't have to bend the needle or buy 28" tires. lol. Thank's .



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