Electronic throttle light - JeepForum.com

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post #1 of 7 Old 05-18-2017, 06:56 PM Thread Starter
jillyb_
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Join Date: May 2017
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Electronic throttle light

ETL comes on, temp gauge shuts off, I can hear fan working(??) I think it's limp mode..but need feedback thoughts
She's a 2008 JK Sahara


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post #2 of 7 Old 05-23-2017, 06:47 PM
M14lvr
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Do you have a scanner with live data?
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post #3 of 7 Old 05-24-2017, 09:29 AM
cranbiz
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Pull the codes if you can, then try pulling the neg battery terminal for a few minutes to reset the computer.

I would also make sure you service the battery terminals while doing the pull. Clean both the posts and the terminals thoroughly and make sure you don't have wires connected to the 10mm clamp bolt. JK's are very finicky about battery voltage.
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post #4 of 7 Old 05-25-2017, 12:48 PM Thread Starter
jillyb_
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Quote:
Originally Posted by M14lvr View Post
Do you have a scanner with live data?


Yeah but no codes were delivered


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post #5 of 7 Old 05-25-2017, 01:11 PM Thread Starter
jillyb_
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Quote:
Originally Posted by cranbiz View Post
Pull the codes if you can, then try pulling the neg battery terminal for a few minutes to reset the computer.

I would also make sure you service the battery terminals while doing the pull. Clean both the posts and the terminals thoroughly and make sure you don't have wires connected to the 10mm clamp bolt. JK's are very finicky about battery voltage.


Thank you, I'll try that too


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post #6 of 7 Old 05-25-2017, 01:27 PM Thread Starter
jillyb_
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Quote:
Originally Posted by cranbiz View Post
Pull the codes if you can, then try pulling the neg battery terminal for a few minutes to reset the computer.

I would also make sure you service the battery terminals while doing the pull. Clean both the posts and the terminals thoroughly and make sure you don't have wires connected to the 10mm clamp bolt. JK's are very finicky about battery voltage.


I also took off hose to opened it up a bit cleaned off sensor & it ran fantastic for a aday... now astatine..it comes on daily


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post #7 of 7 Old 05-26-2017, 09:29 AM
M14lvr
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Looking at live data on the scanner check you map, transmission line pressure, egr control, cam sensor, and throttle body for plausible readings. If everything looks fine on the scanner check the refrence wire out of the pcm. It will be yellow with a red tracer on the c2 connector. If you don't have 5v I would suspect a shorted sensor. Unplug the sensors I named earlier one at a time until you get 5v and find the shorted sensor. If you do have 5 volts start looking for 5v at each sensor and suspect a broken wire. Normally it's a cam sensor, thottle body, or wiring harness but anything is possible. If you have a stick there will be no line pressure sensor. Let me know what you find or if you have any questions and I'll try to point you in the right direction.
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