Start making multiple post, took them months to respond to mine. I sold my tuner by then, best of luck to you.

@qwertlaw: I sold it back in late Dec.

@SCGt94: Appreciate the offer for help but a little late. I had it for almost a month and sold it after no response for help, and no help from a custom tune.

Curious on an update on this. Sounds like the same problems I was having before I sold mine.

Custom tune was to help modify the canned 87 tune to lower the ping/knock that occured when the MDS would engage at cruising speeds.
Truck is lightly modified with an 18" Mufflex Muffler and an Airaid Intake. Nothing to big. Note I was not receiving any ping/knock with the stock tune with the mods.

M15 ended up selling the tuner, the knock came back. He mentions it on dodgeforums.com

@Vas - I was getting knock upwards to around 12-16 whenever the MDS engaged with the 87 tune with 89 octane. I tried a custom tune and it only lowered it slightly to 10-12. I have a '09 Dodge RAM with only a 18" Mufflex Magnaflow Muffler and Airaid Intake with the 3.21 gears. Others didn't have a ...

Hmm didn't know that. I'd just rather not mess with it anymore. I didn't see the gains I expected and even at part throttle, when logging stock tune I didn't see the knock retard. Only showed up with the canned 87 tune and then the custom tune I got.

I'm done playing with the Trinity for the price tag the hassle for me personal has become to great. I'm thinking $450 and I'll pay for shipping. As long as I can get back some of the loss on it I'll be happy with that. Has all the parts still, suction cup, cords, and CD.

From my understanding others haven't had the same problem with knock when the MDS engages. All I do is monitor it with the Trinity and I notice it occurs as soon as MDS engages. I went and got a custom tune and the amount of knock went down but it's still around 10. I'm almost tempted to sell the ...

Oh yeah haha, I broke down and I'm waiting on the Mike Wilson tune.

mdittrich do you have any mods or have MDS turned on/off?

I might try messing with the spark advance and see how it goes. Still baffled to why the 87 tune has the knock sensors going crazy but once I switch back to the stock no problems, even when MDS engages. Any insight would be helpful and ...

I've added up to 20% more fuel and it seems the knock goes away until the MDS kicks in, and the ST knock will get up around 12-14 and LT will cap at about 10 and bounces around while MDS is engaged, then drops to 0 or 1 when the MDS cuts off. When MDS is not on it only jumps to 4-5 at most when it ...

About how much fuel did you add and how bad was the knock?

I never saw the 16 it was the highest value on the ST Knock range on the Digital Gauge. Here are 2 logs. Home2 is with the 87 tune and Cruise1_Nov16 is back to stock that I took today. This is just driving around, I haven't had time or found a spot to get a WOT log due to traffic and living in the ...

I have a 2009 Dodge RAM 1500 5.7L HEMI, and after installing the 87 tune I was noticing a lot of knock at WOT, cruising speeds, and when MDS kicked in. I'm running 89 octane. Can this easily be fixed?

I'm under the impression ST Knock should be 0 and can vary to about 1-2 when gear shifts occur ...