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GTO with Speedometer issue after TH400 swap

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Old Feb 22, 2009 | 12:19 AM
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TurboAv
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Default GTO with Speedometer issue after TH400 swap
I put a thread about it in the Tuning section.

https://ls1tech.com/forums/pcm-diagn...l#post11104074
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Old Feb 23, 2009 | 12:00 PM
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TurboAv
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Ritalin version:

Computer is seeing the correct speed when hooked up to HP Tuners. The cluster is reading 105 at an actual 75mph. Nothing we change in HP Tuners makes a darn difference to the cluster. It only changes what the computer thinks speed is. I'm using a 40 tooth reluctor and correct pickup for what other goat owners have used doing this swap.

Anybody???
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