Fault codes popping up on my D5K2

[JBLheart]

I've got a P Cat D5K2 that's been throwing a few fault codes lately, and I'm trying to get a better handle on what's going on before calling it in. Some of the alerts are vague, and the machine has been running a little off actually and this was shortly before the codes started showing up

What can I do now. Would be great to know what to look out for or if there's a common sensor or system that tends to act up.

Appreciate any insight

 

[Cranelifter82]

Well the first thing you'll need to give us are the fault codes you're getting. Also, you mentioned it's been running a little off lately, what are the symptoms?

 

[vividbl0ck]

I've got a D5K2 too, and when mine started acting up, it turned out to be a bad coolant temp sensor which is pretty common. Check the fuel pressure sensor and wiring near the ECU, loose connections can throw vague codes. If you have access to CAT ET, it'll help narrow things down fast.

 

[bulldog]

@vividbl0ck makes a good point, those sensors can be tricky and cause all sorts of ghost codes. @JBLheart if you don't have CAT ET handy, at least start with the basics like checking connectors and grounds since that alone can save you a service call.