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SVT Shelby GT500
Went to change from my 91 tune to E85 and car acts locked up.
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<blockquote data-quote="GT Premi" data-source="post: 15230276" data-attributes="member: 121775"><p>You have to un-marry the device from your car. I think it boils down to a general glitch in SCT firmware updates where some parameter or code doesn't get updated properly. So when you update your device without returning your car to stock first, then try to (re)load a tune into your car, the SCT will say it's locked to another car. There's probably a code file that's shared between the PCM and the programmer that gets updated on the programmer when you install new firmware, but the remnant is still on the PCM. The mismatch causes the SCT to think you're trying to load a tune on a different car.</p><p></p><p>I could be wrong, though. I'm speaking from an I.T. troubleshooting standpoint. I've worked with my share of firmware problems.</p></blockquote><p></p>
[QUOTE="GT Premi, post: 15230276, member: 121775"] You have to un-marry the device from your car. I think it boils down to a general glitch in SCT firmware updates where some parameter or code doesn't get updated properly. So when you update your device without returning your car to stock first, then try to (re)load a tune into your car, the SCT will say it's locked to another car. There's probably a code file that's shared between the PCM and the programmer that gets updated on the programmer when you install new firmware, but the remnant is still on the PCM. The mismatch causes the SCT to think you're trying to load a tune on a different car. I could be wrong, though. I'm speaking from an I.T. troubleshooting standpoint. I've worked with my share of firmware problems. [/QUOTE]
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SVT Shelby GT500
Went to change from my 91 tune to E85 and car acts locked up.
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