Spark knock

clemsontigers000 · Post by **clemsontigers000** » Sun Jan 23, 2011 11:14 pm

I have a 2009 Dodge Ram with the hemi. I have run all three tunes in the truck and have gotten excessive spark knock in all three tunes. I was wondering if you are able to give Ram owners a feature that would give us the option to turn on or off the torque management in the stock tune?
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Post by **mikel** » Mon Jan 24, 2011 11:39 am

What do TM and KR have to do with each other?

Have yo logged the stock tune to see if it knocks like the performance tunes?

clemsontigers000 · Post by **clemsontigers000** » Mon Jan 24, 2011 12:10 pm

They have nothing to do with each other. With the stock tune I got less than 2 degrees of short term with no long term. I am unable to use the tunes because of the excessive spark knock. I want to be able to adjust TM while on the stock tune and also mess with the throttle sensitivity. Are you able to give a function that I have the stock tune but reduced TM?

gizmodo · Post by **gizmodo** » Mon Jan 24, 2011 12:20 pm

You don't get long term knock with a tune. You get long term knock if you continue to knock over and over in the same areas.

clemsontigers000 · Post by **clemsontigers000** » Mon Jan 24, 2011 12:36 pm

gizmodo wrote:You don't get long term knock with a tune. You get long term knock if you continue to knock over and over in the same areas.

Thank you so much for data logging my truck! You must have the wrong truck since I am getting long term knock. I get long term knock in all performance tunes, 93 being the worse with as much as 7 degrees of long term knock and up to 9 and 10 degrees short term. That is why I asked the DIABLO PROFESSIONALS can they give me reduced TM in my stock tune!!

Post by **mikel** » Mon Jan 24, 2011 12:40 pm

If you are seeing KR in the stock tune, increasing the timing will surely cause more..

Id look into a catch can first, to see if you can get rid of the KR and allow the engine to take advantage of the extra timing in the tunes.

Post up a copy of the last tune written after you load the performance tune, and I'll set all the timing back to stock.

Thanks

gizmodo · Post by **gizmodo** » Tue Jan 25, 2011 10:22 am

You don't understand long term knock. Reset the PCM after flashing the tune to clear it. Long term knock is "learned" knock, and it doesn't come with a tune. Short term knock is what you are interested in because that is what is happening real time.

clemsontigers000 · Post by **clemsontigers000** » Tue Jan 25, 2011 3:02 pm

Hey Mike thanks 4 your replies!! I am not sure you fully understand what I am asking 4.What you are offering will accomplish that but I would like the option of reducing TM in my stock tune(% preset by DS). If this could be an option under Quick Adjustments or Modifing Parameters I think this would be beneficial to all Ram owners that have decided to work off the stock tune. Thanks

gizmodo · Post by **gizmodo** » Wed Jan 26, 2011 10:20 am

Mike you may want to explain that since there is LT knock it will show up on all tunes since the PCM is not being reset after flashing. I would, but I'm not a DiabloSport "PROFESSIONAL", so he won't listen to me.

Post by **mikel** » Wed Jan 26, 2011 1:44 pm

Reducing TM is not something you cando as a parameter inthe tool, as it requires many adjustments inthe tune to do it properly.

clemsontigers000 · Post by **clemsontigers000** » Wed Jan 26, 2011 9:38 pm

Well Mikel not the answer I hoped for but thank you for answering my question!!

rstp · Post by **rstp** » Thu Jan 27, 2011 10:06 am

Lots of us with 09 ram 5.7 have the same problems ok stock and to much kr with any of thier tunes and it deos matter what fuel you run its been about a year and they haven done anything to fix the problems i run a cathch can and the problem is still there they seem just not wanting to deal with it thats why i went to superchip better tunes less headeach its been a joke waiting for them to deal with the problem i dont think they no what going on or want to take the time to figure it out .

gizmodo · Post by **gizmodo** » Thu Jan 27, 2011 10:22 am

You have the ability to adjust timing with the handheld for a reason. Every vehicle is different. If you are knocking, remove some timing in the area where it is happening. If you have LT knock, you should reset the PCM after flashing the tune since the PCM will pull timing where it has LT knock regardless of whether it is knocking or not. Disconnect the negative battery cable for 10-15 seconds to reset the PCM.

rstp · Post by **rstp** » Fri Jan 28, 2011 10:22 am

You can not change part throttle timming with the unit only by getting a custom tune or by DS doing for you like some of us had to do you dont no what your talking about and everytime you change a tune the computer gets reset as far as DS says.

gizmodo · Post by **gizmodo** » Fri Jan 28, 2011 10:49 am

If you are knocking at part throttle you have some problems you need to take care of.

The adaptive learning doesn't get reset when flashing a tune unless it is different for each vehicle. But, if you have LT KNOCK or LT fuel adjustments immediately after flashing a tune, you can bet it doesn't.

Spark knock

Spark knock

RE: Spark knock