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Mustang Forums
2011-2014 Mustangs
Engine/Tuning
I sipped the AED koolaid, I'm a happy camper!
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<blockquote data-quote="Shaun@AED" data-source="post: 11641924" data-attributes="member: 32381"><p>Here's a log from a Member on this site. Factory stock 2012 GT on the stock tune.</p><p>This is a 5th gear run and it shows the ECU commanding a lean A/F at WOT, then cat overtemp protection kicks in and richens the mixture. You can see the ECU is also pulling spark (likely thru Knock sensors) in an effort to save the motor.</p><p></p><p>Imagine if this was a tuned car with off-road exhaust. A tuner may turn off Cat enrichment since there are no cats, add some ignition timing and if it was a year ago, modify the knock sensors to not pull as much timing.....</p><p>Tuners made the problem worse, but they did not cause it.</p><p></p><p>[ATTACH=full]304192[/ATTACH]</p></blockquote><p></p>
[QUOTE="Shaun@AED, post: 11641924, member: 32381"] Here's a log from a Member on this site. Factory stock 2012 GT on the stock tune. This is a 5th gear run and it shows the ECU commanding a lean A/F at WOT, then cat overtemp protection kicks in and richens the mixture. You can see the ECU is also pulling spark (likely thru Knock sensors) in an effort to save the motor. Imagine if this was a tuned car with off-road exhaust. A tuner may turn off Cat enrichment since there are no cats, add some ignition timing and if it was a year ago, modify the knock sensors to not pull as much timing..... Tuners made the problem worse, but they did not cause it. [ATTACH=full]304192[/ATTACH] [/QUOTE]
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2011-2014 Mustangs
Engine/Tuning
I sipped the AED koolaid, I'm a happy camper!
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