2010 ISX fault codes....HELP!!!

First one SPN 2633 FMI 7

SPN 101 FMI 2

SPN 1209 FMI 16

What it means?
Possible harness issue?

Maybe Pablo or another mechanic will chime in.

 

Well the actuator out of adjustment it is possible actuator is acting up the exhaust psi code most like is a result of the actuator not working proprly the crankcase could be from that but that would be really streching it i would say the filter for the breAther is old or replace sensor its inexpensive and quick to do they also have issues in internationals

 

You kinda need more information to go on than that. The ECM will log when the first and last time those faults happened. They could have been logged a long time ago. Chances are you truck is due for some maintenance. The exhaust gas pressure sensors only last so long before they die out. They are subjected to a lot of heat. They basically burn out after a few years. The connector for them is also prone to water intrusion and corrosion sets in. Crankcase pressure data erratic is usually dirty or faulty sensor. The turbo actuator not responding is something to worry about, if it goes active. The diffuser ring inside can crack and cause binding which will cause this code. It could be just the actuator too, but worry about it when it fails, there is nothing you can do with the turbo. You can keep your EGR system in top shape by making sure the intake manifold pressure sensor and the EGR differential pressure sensing tubes and the venturi pipe are clean. There are many threads about this. Check out here;
http://www.thetruckersreport.com/tr...cm871-technical-discussion.html?highlight=871
You should also make sure your ECM calibration is up to date. Cummins puts out software updates all the time to improve the reliability and performance of the engine.

 

Not all shops are honest, and they will change your turbo if they think they can get away with it. You just have to put your foot down and say no, thats all. Not sure what to tell you about the air spit sound. Sometimes the air dryer is on the verge of purging, or the governor is about to exhaust to cut-in when the engine turns off and when the engine shakes the whole truck for that split second as it stops is enough to trigger the purge. Also, if you have been in this extreme cold this week, trucks make all kinds of weird noises you normally do not hear.

 

Once the ECM detects a fault it will log it and as long the fault is still a problem it will be "active". Once the ECM detects the problem is now gone, the fault status changes to "previously active", or "inactive". These codes will stay logged this way forever until someone clears them with a service tool, (laptop computer). Codes can get logged by simple glitches such as the engine being power washed and a little water gets inside a connector or two, or low battery voltage during cranking, anything. I wouldn't worry about it too much. Every truck logs codes every now and then.