1996 Monaco Dynasty check engine light

[Paul Brown Jr]

I own a 1996 monaco dynasty and I have a check engine light on , but it drives ok but I can not find out what is the problem can some one help?  Thanks

[CRY1942]

On 97 Dynasty, mechanical, Cummins, C8.3, there is only three things that will turn on the Check Engine light; Low Air Pressure, Low Oil Pressure or High Water Temperature. See attached drawing.

 

 

Sorry could not figure out how to attach the drawing.

 

[Dennis H]

You can do one or both of two things to find out. Least costly is to get a scan tool and hook it up. If you want the best solution, take it to a Cummins shop and have them scan all systems. They'll give you a printout of your system faults and explain what they mean. From there you can decide how to proceed. I'd get it done and fixed before you end up stuck somewhere and have to be towed.....Dennis

[dl_racing427]

On 11/11/2023 at 1:24 PM, Dennis H said:

You can do one or both of two things to find out. Least costly is to get a scan tool and hook it up. If you want the best solution, take it to a Cummins shop and have them scan all systems. They'll give you a printout of your system faults and explain what they mean. From there you can decide how to proceed. I'd get it done and fixed before you end up stuck somewhere and have to be towed.....Dennis

Is the 1996 still a mechanical engine?  No ECU to scan on those.

[Dennis H]

2 hours ago, dl_racing427 said:

Is the 1996 still a mechanical engine?  No ECU to scan on those.

I never checked for a port on my 96 Dynasty. I left it to Cummins. That was before I got educated about diesel engines, of which I'm still learning.....Dennis

[Paul Brown Jr]

I have not checked the  things you said but hopefully I will be able to check this week.  Thanks.