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Ok thanks, I will search on how to adjust the MAF settings and will contact Innovative Motorworks if I cannot figure something out.

Likely the 4" intake if it changes the MAF housing size and you haven't recalibrated the MAF curve for it. I think you are correct that the larger than stock intake is causing problems, prior to this I tried a generic ebay 3" pipe but that gave me running rich codes and I couldn't find a ...

Vtec will always kicks in at 3200 at any load and turns off when goes under 3000. Thanks for your all your help Linszter!! I'm gonna mess around with when the Vtec kicks in and it sounds pretty good when it does through my Borla mufflers. Now I just have to figure out why I keep getting the P0171 a...

Thanks Linszter for your help and explanation :D Right now I am using the 1 and only performance tune available for the MDX which is Tune 1. Mbar I haven't modified at all and it is set to 4311 under all rpms from 1000 to 5000. I changed the Vtec settings to Lower engage 3200, lower disengage 3000, ...

Linszter, Thanks for making it a little bit clearer as to how and when Vtec kicks in. Now I understand the rpm part but as you said the Mbar also plays a role. What number can I set Mbar at to guarantee Vtec will kick in using only the rpm requirements? I am not sure if the number has to be super hi...

Ok, I have been reading gonzo 2023's post about engaging and disengaging vtec. He stated that he wanted his vtect to start at 4500 rpm and have it disengage or turn off at 5100 rpm. He asked and I quote "so put lower engage 4500 and lower disengage 4300 and upper engage 5100 and upper disengage...

I was just wondering, is there any reason you want Vtec to kick in only between 4500-5100 rpm? I wanted mine to kick in at 3800rpm all the way to 6800 redline but I still can't figure out how to do it with the V2.

I will read up on that and try to do some adjustments, thanks!

Well, is there any other adjustment to make the throttle more responsive and make the revs drop quicker? Feels like the delay in closing the throttle is way too long and yes, I rev at slow drivers probably more than 20 times a day and I hate it when the revs drop slowly especially when my exhaust is...

Is the overrun throttle compensation adjustable for the 2011 MDX? It doesn't allow me to input anything and the box is red.