Deleting vs. swapping parts vs. tuning - Dodge Cummins Diesel Forum
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post #1 of 18 (permalink) Old 09-16-2019, 01:20 PM Thread Starter
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Deleting vs. swapping parts vs. tuning

Just asking this out loud. For so many people having to do emissions testing, why not just get another ecm flashed to your VIN and a set of nox/dpf filters for emissions testing, then swap everything back to “deleted tuning” and be done? This way seems the better way to do it while looking stock for that just Incase moment your get pulled over.

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post #2 of 18 (permalink) Old 09-16-2019, 04:28 PM
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Originally Posted by 5.7 Hemi View Post
Just asking this out loud. For so many people having to do emissions testing, why not just get another ecm flashed to your VIN and a set of nox/dpf filters for emissions testing, then swap everything back to “deleted tuning” and be done? This way seems the better way to do it while looking stock for that just Incase moment your get pulled over.
Swaping exhaust every time and now an ECM. You just added another step? Maybe Im not following.

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post #3 of 18 (permalink) Old 09-16-2019, 04:42 PM Thread Starter
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Takes an hour at most to swap everything, then do some driving to get the IM Readiness monitors set and your golden. This would only be good for people that have yearly or bi-annual emissions testing, such as California.
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post #4 of 18 (permalink) Old 09-16-2019, 05:13 PM
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Spending money on an extra ECM? You still have to swap the exhaust?
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post #5 of 18 (permalink) Old 09-16-2019, 06:14 PM Thread Starter
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ECM is $600 flashed to your VIN, and if you have your stock exhaust, no more money to spend. I’m just saying if you had both, legal and “questionable” stuff, you could swap as necessary and be go to go. But if some is gonna spend $15/2k on exhaust,tuning and such, this may be a bit cheaper.
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post #6 of 18 (permalink) Old 09-16-2019, 07:01 PM
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You still have that cost of tuning+ the ECM which is not $600. It's quicker to reflash then pull the ECM and take a chance on damaging the connector pins. So I don't follow how it is cheaper. So less than an hour to swap out the exhaust and the ECM? Your fast.

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post #7 of 18 (permalink) Old 09-16-2019, 07:27 PM Thread Starter
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My truck was tuned and gutted Nox/Dpf filters. Dealer sent me the filters and I bought another ECM flashed to my VIN, now my truck just passed smog. I’m happy and the truck will run better real soon.

I guess this would pertain to people that bought a tuned truck. For me, just made sense to have both.
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post #8 of 18 (permalink) Old 09-16-2019, 09:13 PM
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Why not just have the tuner that's capable of stock and race tuning. You need something to load your tunes with any way. Cheaper than a 2nd ecm.

Edit I see you bought it tuned. Do you know who's tuning is in the truck? What settings? Anything? That would drive me bonkers not knowing.

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post #9 of 18 (permalink) Old 09-16-2019, 09:26 PM Thread Starter
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I don’t know who/what tuned it. So for me, this has worked out. But what I can say is “it’s a BEAST” with the tune on it, mpg’s are definitely better.
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post #10 of 18 (permalink) Old 09-16-2019, 09:31 PM
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You should be cautious. If the truck had a h&s and the PO just pulled the head unit, the timing goes to default. Quick ticket to a new head gasket. Hopefully for your sake it was good quality tuning and no harm will come.
What of trans tuning? Is it also tuned?

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post #11 of 18 (permalink) Old 09-16-2019, 09:32 PM
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Quote:
Originally Posted by 5.7 Hemi View Post
I donít know who/what tuned it. So for me, this has worked out. But what I can say is ďitís a BEASTĒ with the tune on it, mpgís are definitely better.
As long as the beast doesnít get its HG comprised with aggressive timing that you have no clue of.

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post #12 of 18 (permalink) Old 09-16-2019, 09:35 PM Thread Starter
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I’m well aware of HG issues, so I drive like a civilized human being. I never get on till it’s up to operating temp and I never go above 2000 rpm’s. All because I don’t know what tune it has.
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