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SVT Shelby GT500
New GT500 owner - Any potential issues running 95 octane mix on a 93 tune?
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<blockquote data-quote="RedVenom48" data-source="post: 16284029" data-attributes="member: 166576"><p>Incorrect. You have 2 sets of o2 sensors on your car from the factory. 1st set is the primary o2 sensors. Your car wouldnt run correctly at all without these sensors. You are correct that on 07-10 they were not wideband. HOWEVER, you still have them and their job is STILL to monitor and report exhaust o2 levels in closed loop to the computer. Its less accurate than the Widebands, but its still more than enough to determine between straight gas/racegas and e10 pump fuel. Now, if you were trying to run E85, yes, you'd need to upgrade the system to a wideband. </p><p></p><p>Your secondary o2s are probably shut off for "off road use only". Those are the sensors that monitor catalyst efficiency. SOME manufacturers use them for A/F fine tuning, but i do not believe Ford factory calibrations ever did for GT500.</p></blockquote><p></p>
[QUOTE="RedVenom48, post: 16284029, member: 166576"] Incorrect. You have 2 sets of o2 sensors on your car from the factory. 1st set is the primary o2 sensors. Your car wouldnt run correctly at all without these sensors. You are correct that on 07-10 they were not wideband. HOWEVER, you still have them and their job is STILL to monitor and report exhaust o2 levels in closed loop to the computer. Its less accurate than the Widebands, but its still more than enough to determine between straight gas/racegas and e10 pump fuel. Now, if you were trying to run E85, yes, you'd need to upgrade the system to a wideband. Your secondary o2s are probably shut off for "off road use only". Those are the sensors that monitor catalyst efficiency. SOME manufacturers use them for A/F fine tuning, but i do not believe Ford factory calibrations ever did for GT500. [/QUOTE]
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New GT500 owner - Any potential issues running 95 octane mix on a 93 tune?
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