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2013-14 Shelby GT500
6250 to 7000 RPM Light - Strange Behavior
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<blockquote data-quote="Vinnie_B" data-source="post: 16986522" data-attributes="member: 201678"><p>I got your back [USER=152454]@LS WUT[/USER] .........</p><p></p><p></p><p>Chris,</p><p></p><p>1.) First thing I would do....<strong>DATA LOG</strong> reference values and compare them to OEM specs at HOT IDLE/ 30 MPH/ 55 MPH. Especially ECT, CHT, O2'S ect that would effect engine is at temp.......Keep an eye on your engine oil temp as well!! That light goes out once <strong>coolant temperature reaches 170°F (77°C) and oil temp is in the green</strong> .I would also data log VPWR for any voltage issues.</p><p></p><p>I dont like to guess but you could be dealing with something simple of something much more complicated. Things to consider.....</p><p></p><p>1. Failing/erratic or Input sensor that is not secured properly</p><p>2. Failing PCM/Instrument Cluster module. *Need to run them thru a diagnostic self test with something like Ford IDS/ Forscan to verify there integrity</p><p>3. Possible corrupt firmware in the PCM/Instrument cluster modules</p><p>4. Network issue (Need to run a Network Test for data transfer issues between modules)</p><p></p><p></p><p></p><p></p><p></p><p>ENGINE OVER-REV Note: Engine torque and maximum rpm are limited until <strong>coolant temperature reaches 170°F (77°C)</strong>. Warm up is indicated when the redline indicator band starting point changes from 6250 rpm to 7000 rpm. Your vehicle is equipped with an over-rev feature to increase the performance range of your Shelby GT500. When conditions permit, over-rev is indicated on the tachometer with redline marked at 7000 rpm. If conditions limit over-rev accessibility, the band is illuminated red from 6250 rpm to 7000 rpm. Once the engine is warm, the over-rev feature allows eight seconds above 6250 rpm up to 7000 rpm. If the eight second time limit is exceeded, the maximum engine rpm is reduced to 6250 rpm until both of the following occurs: • Engine is operated for at least 15 seconds below 6000 rpm • Engine rpm falls below 5000 rpm. Do not operate the engine at high rpm and low load for sustained periods of time, as damage may occur.</p></blockquote><p></p>
[QUOTE="Vinnie_B, post: 16986522, member: 201678"] I got your back [USER=152454]@LS WUT[/USER] ......... Chris, 1.) First thing I would do....[B]DATA LOG[/B] reference values and compare them to OEM specs at HOT IDLE/ 30 MPH/ 55 MPH. Especially ECT, CHT, O2'S ect that would effect engine is at temp.......Keep an eye on your engine oil temp as well!! That light goes out once [B]coolant temperature reaches 170°F (77°C) and oil temp is in the green[/B] .I would also data log VPWR for any voltage issues. I dont like to guess but you could be dealing with something simple of something much more complicated. Things to consider..... 1. Failing/erratic or Input sensor that is not secured properly 2. Failing PCM/Instrument Cluster module. *Need to run them thru a diagnostic self test with something like Ford IDS/ Forscan to verify there integrity 3. Possible corrupt firmware in the PCM/Instrument cluster modules 4. Network issue (Need to run a Network Test for data transfer issues between modules) ENGINE OVER-REV Note: Engine torque and maximum rpm are limited until [B]coolant temperature reaches 170°F (77°C)[/B]. Warm up is indicated when the redline indicator band starting point changes from 6250 rpm to 7000 rpm. Your vehicle is equipped with an over-rev feature to increase the performance range of your Shelby GT500. When conditions permit, over-rev is indicated on the tachometer with redline marked at 7000 rpm. If conditions limit over-rev accessibility, the band is illuminated red from 6250 rpm to 7000 rpm. Once the engine is warm, the over-rev feature allows eight seconds above 6250 rpm up to 7000 rpm. If the eight second time limit is exceeded, the maximum engine rpm is reduced to 6250 rpm until both of the following occurs: • Engine is operated for at least 15 seconds below 6000 rpm • Engine rpm falls below 5000 rpm. Do not operate the engine at high rpm and low load for sustained periods of time, as damage may occur. [/QUOTE]
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2013-14 Shelby GT500
6250 to 7000 RPM Light - Strange Behavior
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