Archived 1693 and 602 code...

[THenningsen]

My truck displayed a 1693 and 602 code today. I haven't had any problems. I changed the transmission fluid and engine oil recently. any ideas what this is? From what I understand, these are ECM related but I'm looking for specifics.

 

[woodsrat]

602 ECM Fueling calibration error. Ecm Internal fault condition detected.


1693 Is a electronic malfuntion compainion code it comes up just about with everything electronic.

 

[THenningsen]

so what is broken?

 

[Boondocker]

Are you running a Smarty? One of the known issues with the Smarty is that it throws the 602 code. It's considered a nuisance code since we know the Smarty does it. However, if that's not your case, then the ECM has detected fueling outside of normal parameters. I don't hava a solution other than clear the code and see what happens.

 

[THenningsen]

No fueling mods