running rough p0606

Hi, I have an 06 cummins. About a year ago the front and rear banks started dropping out at random times. Codes were p2146 and p2149. When a bank would drop out it didnt last long, even if it did, when you shut it off and start it again it would act fine. Making it really difficult to test. Now it is coding those codes plus p0606, internal ecm processor. So I sent the ecm away to get rebuilt to cardone. took 4 weeks and when i got it back they said it cant be rebuilt. So saying all that does anyone have this problem? also where is a good spot to get an ecm?

What did you end up doing to solve your intermittent bank problem. I’m having same thing, and have a cam sensor code p0341. With the bank code p0202, and p2146


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