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Discussion Starter · #1 ·
Question for those of you with the xzt+. I cant seem to get the high idle feature to work on my 2002. Also i should add that i dont live in a cold climate as it was still around 46°F this morning. Is that just still too warm for the engine to be in warm up long enough for high idle to engage? I Will be taking a trip soon and will see temps around 15-20°F and would like to have it working then. I believe i have the factory tune that all xzt+ are loaded with as default. Here is the description: The XZT+ with the 1010 tune is a 1000 series tune with added features:
Features: • Factory Tuning file that all XZT+ Modules are shipped with • Adds Automatic 1200 RPM High Idle • Adds Cold Engine Protection set at 140 deg Coolant Temperature • High Idle will engage any time the vehicles is in warm up after 2 minutes of continuous idle regardless of switch position • High Idle will only engage in the OFF setting once engine has reached 140 deg Coolant Temperature • Module will default to the OFF setting regardless of switch position when Cold Engine Protection is enabled • 30 Second wait period before High Idle engages • High Idle may be disabled by touching the accelerator pedal or by changing switch positions • 2002 Trucks May also kill high idle with the brake pedal • High Idle will engage regardless of temperature It does great for towing and someone trying to achieve great fuel mileage.
 

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Discussion Starter · #3 ·
I let it idle with the E brake on for over 2 minutes and nothing. I also could hear the grid heaters cycling. How do i measure apps and what voltage should i see? thanks.
 

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Discussion Starter · #5 ·
I do have a live scan tool. What are the reading parameters im looking for? And i think my scan tool has a brake light switch position on it. What exactly do you mean with that? Thanks man
 

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Discussion Starter · #8 ·
Anyone know what my apps volts should be at idle? I seem to see the numbers all over the place on other threads. Is there factory parameters i should be in? Currently at .27v at idle read from live scan tool. Im just trying to get this high idle mystery solved
 
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