Hello all, I recently picked up a 2009 with 5k miles and loving every minute of it. I'm thinking when I get my car serviced for it's 6k, I'll have Nissan flash to LC4. Can you 09 owners speak to that change? Was it pretty significant on noise and overall smoothness of shifting? Does Nissan charge for doing this flash? If so, what's the damage? Appreciate this forum quite a bit, lot of knowledgeable cool people here.
When you say you have a custom tuned lc4 do you mean you have lc4 beta with a custom tune? I'm getting ready to convert on my 2010 but want to make sure I don't need to modify my custom tune to accomodate lc4.
Are there any downsides to putting LC4 on the '09 models? Are there any major differences from flashing to LC4 with Cobb than having "factory" LC4 on the 2012+ models?
The biggest downside is that you just spin the tires all over the place if you're on factory rubber! On R mode it just bogs completely due to wheelspin.
I switched back to LC2 3750rpm but my car still revs to 4000, but the driveability factor of LC4 is just amazing. I got it sort of close changing my settings to 1-1-2-6 and that first gear stumble is hardly noticeable but still there. The only thing is when the trans is cold it shifts kinda rough putting around the neighborhood.
Thanks for the reply! I am just looking to smooth the tranny out for putting around the city. The starts from a stop a pretty rough and the shifts from 1-3 is are not as smooth as I'd like it to be. It's not a big issue, but since there's a way to make it better, I'd like to have it.
Just checked "Check Search Beta Firmware" in the AP Manager and it installed v1.6.5.0-2897..... Is this the correct version for the LC4 w/ "KB51B Stock Style LC4 VDC off"??
That is the correct map, but the firmware version is not correct. that is the release firmware you need the ALPHA. To get the alpha you have to follow the instructions that are here in this post.
I screwed up. Didn't realize I needed to uninstall the cobb from my car..... I updated everything already and am on AP Manager 2.0.1.5 and Firmware v1.6.5.1-3617. What the heck do I do now? lol
Just hook it up to the car and unistall. No different than with the old software..... I'm surprised you didn't try that before you wrote this post.....
That is the correct firmware. To get the LC4 maps to show up you have to uninstall and then install the AccessPORT. The LC4 maps will show up during the TCM install process which is after the ECU install.
I'm also assuming that you have an AP-NIS-006 and not a AP-NIS-005.
Has Cobb figured out a way to have LC4/LC5 work with VDC on? I'm sure the dealer will have a fit when trying to warranty your R35 with a Cobb reflash, but adding VDC off launches to the menu (black box reading) will start a shit show.
If you install the Cobb, it technically voids your warranty already anyway. At that point, launching it with VDC off or on isn't going to make a difference...
VDC off launches are fine just as long as your tranny doesnt grenade (common sense). But if it grenades, I'd rather have the black box say that the launch was done with VDC ON. With a Cobb reflash, your warranty claim have a 50/50 chance.
Cobb or no Cobb, if your tranny grenades and the black box recorded VDC OFF, you have zero chance of warranty.
Doesn't the logic make sense? Corporate Nissan attempts to honor your warranty (on most occasions) even with mods like the Cobb AP. But if you roast your tranny with a history of VDC OFF launches, you're only asking for them to deny your warranty claim.
It all depends on what breaks. If you break your 1st gear, you are right, your done. VDC OFF with wheel hop will do that. But don't HOP (and don't LC1) and it's very unlikely to happen, you are not going to break 1st gear. You can launch the shit out of a car and NOT hop, and NOT break a gear. I launched the shit out of my black car like 300+ times with VDC off, with 60's in the 1.4's. I just didn't hop it much.
You act like simply turning VDC off is going to kill your warranty. Do you really think that's true? Do you think if I have a stock car, and drive around with VDC off sometimes, or accidentally hit that button on the dash that my warranty is gone if a solenoid or seal goes bad?
So, I hit a button that Nissan designed and built and put into my car and my warranty is gone? But if I flash the cars engine and transmission management they will think that is OK???????? Really ? You think that makes sense ??
Look, you can try to make yourself feel protected if it makes you feel better. But the reality is you have flashed the car. You may or may not get covered if there is some drivetrain failure on your car.
Cobb AccessPort can only be married to one car at a time.
-John
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