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Mustang Forums
2011-2014 Mustangs
speedometer calibration without tuner?
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<blockquote data-quote="03Sssnake" data-source="post: 16187750" data-attributes="member: 7121"><p>Try reading the ecu with a battery tender plugged in. You can also disconnect battery and unplug the ecu, the connector is by passenger headlight. The s197s could be real temperamental with battery voltages. I have had my fair share of issues while changing tunes etc. You can always ask SCT for stock tune file, they may be able to provide you with one to try.</p></blockquote><p></p>
[QUOTE="03Sssnake, post: 16187750, member: 7121"] Try reading the ecu with a battery tender plugged in. You can also disconnect battery and unplug the ecu, the connector is by passenger headlight. The s197s could be real temperamental with battery voltages. I have had my fair share of issues while changing tunes etc. You can always ask SCT for stock tune file, they may be able to provide you with one to try. [/QUOTE]
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2011-2014 Mustangs
speedometer calibration without tuner?
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