The app itself said it was not available for my vehicle
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I just opened my app and it’s clearly showing it’s available. I didn’t attempt to purchase it, maybe that’s where it fails. Were you able to purchase “GM 1998 extended parameters”(and it failed to work) or it wasn’t available? Also, when I purchased mine for 1996, they told me flat out TFT(transmission fluid temperature) wasn’t available for my truck. It definitely is, so I’m not sure these guys really know much about their own product.
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