Jump to content

  • Welcome To Mopar1973Man.Com LLC

    We are a privately owned support forum for the Dodge Ram Cummins Diesels. All information is free to read for everyone. To interact or ask questions you must have a subscription plan to enable all other features beyond reading. Please go over to the Subscription Page and pick out a plan that fits you best. At any time you wish to cancel the subscription please go back over to the Subscription Page and hit the Cancel button and your subscription will be stopped. All subscriptions are auto-renewing. 

IAT Sensor wiring diagnosis

01_Cummins_4x4
 Share

Recommended Posts

  • Staff
01_Cummins_4x4

01_Cummins_4x4

Posted
  • Staff
Posted

My ScanGauge2 is showing my IAT constantly at -40F. I just installed a brand new IAT sensor, with no change. Since it's reading -40f constantly, is that an indication that it has a bad ground wire?

 

I have the IAT sensor trouble code showing until I can get this fixed.

 

Thanks!

Link to comment
Share on other sites
  • Staff
01_Cummins_4x4

01_Cummins_4x4

Posted
  • Author
  • Staff
Posted

I lucked out on this. Previous owner had messed with the sensor connector and the positive wire pin wasn't contacting the sensor pin. 

 

I ended up cutting both wires so that the pins could lock into the connector, and then I connected them back to the two wires. Now my IAT sensor is working correctly again.

Link to comment
Share on other sites
 Share
Go to topic listing

Rate The Author

Please take the time and give the author a 1 to a 5-star rating for the information you have gained from anywhere on the website. All forum threads, articles, etc. If a members post is good information please don't forget to tell them "Thanks" or "Like"

Rate Us On Google

Please take the time and visit our Google Review page and give us a review of our services.

Tip Jar

If Mopar1973Man.Com has helped you with quick and timely information for your repair please consider tossing a tip in the Tip Jar

×
×
  • Create New...