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International Automotive Technicians Network

Automotive Technical Discussion Forum

Professional automotive forum for all types of vehicle repair discussion that does not fit into one of our more specific technical forums. Discussions include both OBD and OBD2, engine performance analysis, diagnostic best practices, service information, vehicle standards such as J1962, J1939, J2534, OBD2 modes (e.g. MODE$06), ignition and fuel system analysis, alternative propulsion (e.g. hybrid, electric, natural gas), and more. This forum is for experienced automotive repair professionals only, membership required.

Continue to the description of our next automotive discussion forum, the Technical Theory Forum.

Recent Automotive Discussions in the Automotive Technical Discussion Forum

basic voltage drop testing--the loop
10/31/2025 in the Technical Discussion Forum
Hello, IATN members. I would like to post my hand drawn diagrams for this post, but due to the circumstances of where I am located this is not possible. Upon reviewing the thread here on the trailer brake actuators, I have concluded that a discussion of v...
GM LS Oil pressure sensor
10/29/2025 in the Technical Discussion Forum
2007 Tahoe with the 5.3L. Oil pressure sensor leaking. Boss gave me .6 to replace. I believe he got this time estimate from Napa Prolink. I have always removed the intake plenum to replace this sensor. Can't do that in .6. I replaced the sensor with out r...
BMW DME Misfire Fuel Cut Protection
10/29/2025 in the Technical Discussion Forum
Have a question for any BMW techs. Will a 2000 era (2003 Bmw 330i to be specific) BMW DME always set a fuel cut code when it goes into misfire/catalyst protection. Have a vehicle with a misfire on cylinder #5 and the fuel injector is not getting ground co...
Electric trailer brakes
10/28/2025 in the Technical Discussion Forum
[Brakes: 18 Ram 2500 Big Horn 6.7L] Hello, I have my RAM 2500 with trailer brake issues, and I have been having trouble with my trailer brakes. I recently installed a new Tekonsha Prodigy P3 brake controller to help (Ram is no help) with trailer braking ...
BMW broken fuel injector removal - suggestions and tooling?
10/28/2025 in the Technical Discussion Forum
[Driveability: 12 BMW X5 xDrive35i 3.0L] Hi Folks, I am more of a lurker than a participant, but enjoy the conversations here. Dealing with a 12 X5 that had the leaking cowl dripping on to the back cylinders. I thought it was a celebration after getting ...

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