Jump to content
Mopar1973Man.Com LLC

  • Welcome To Mopar1973Man.Com LLC

    We are a privately owned support forum for the Dodge Ram Cummins Diesels. All information is free to read for everyone. To interact or ask questions you must have a subscription plan to enable all other features beyond reading. Please go over to the Subscription Page and pick out a plan that fits you best. At any time you wish to cancel the subscription please go back over to the Subscription Page and hit the Cancel button and your subscription will be stopped. All subscriptions are auto-renewing. 

p602

Bkrier01
 Share

Recommended Posts

Bkrier01

Bkrier01

Posted
Posted

I'm getting this code with no check engine light but the truck does not idle as well as it used to. That is the only symptom. P602 is a programming issue with the ECM. Any ideas?

  • Owner
Mopar1973Man

Mopar1973Man

Posted
  • Owner
Posted

Smarty... It's causing the error code... If you reset to stock and clear the codes you'll be fine... But as soon as you run a Smarty program the error will show up... Of course because you modifying the stock fueling tables in the ECM and the checksum doesn't match any longer...

Bkrier01

Bkrier01

Posted
  • Author
Posted

So do you suggest this may not be causing the odd idle? Im considering putting in newer injectors with the hopes it will take care of the minor idle issue. And I did try that but nothing changed. I had problems with my smarty at one time which is probably why. I got stuck in a tune.

 Share
Go to topic listing
×
×
  • Create New...