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Installed Timbo Apps now idling around 1000 rpm

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I just received and installed my Timbo APPS and did everything the instruction said and watched his videos as well. Then when I started the truck it quickly jumped up to around 1000 rpm and didn’t drop. Tried to recalibrate once again and it still is idleing high. Please help as this is my only vehicle currently. 

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  • Owner

Pull the plate back off and remove the Timbo's APPS sensor from the back. Now start again and see if it idles properly. If the IVS is seeing throttle position it will jump up in RPM's. When you release the sensor from the bellcrank it should idle normally if so this means the idle stop screw is too high and needs to be released. 

  • Author

So at that point would I just disregard the installation voltage and keep backing off idle screw till it starts to idle correctly?

  • Owner

Idle voltage doesn't matter. It's the angle of the sensor. It's a matter of getting the contact in the right zones. Again voltage doesn't matter at all!

 

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In idle position. When the IVS (Idle Validation Switch) is grounded on the idle position the voltage is disregarded and the ECM software for idle is used. So if the contacts are in the throttle position then the ECM idle software is shut down and the voltage is used to control engine speed.

 

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  • Author

I removed the Timbo sensor and restarted the truck. The idle is still around 950 after taking it off the plate.

  • Owner

Ok, one last thing to try Unplug the sensor completely and start. Yes I know it will trip an error code but it should default to idle speed. I want to verify the actual idle speed. 

 

Is this one of our Timbo's APPS? If so could you drop over to the support ticket and send me a support ticket and we will handle a replacement Timbo Sensor. 

  • Author

I unplugged the sensor and it dropped back down to normal idle rpm range. I purchased the sensor from Timbo website. I guess I’ll have to try and get in contact with him. Can I put my old sensor back on the truck for the time being? 

  • Author

Thank you for your help. Hopefully I won’t have a problem putting the old sensor back on. 

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