Is there ny advantage to putting the PC on a 14 LC?
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Well, the electronic transmission shift algorithm definitely considers the rate of voltage change, so that could be a basis for getting better spaced shifting patterns. Coming from several past Toyotas, I do think they got majorly spooked by the "accelerator-gate" fiasco and it would not surprise me if they are playing it safe with the throttle curve possibly at some expense of relative fun "drivability".
(EDIT: I understand I'm mixing up several issues here and lumping them together, but all I care about is the "drive-ability" while not loosing any MPG, or hurting her!!! )
I admit it is very hard for me to criticize the LC, absolutely the best driving machine (overall) I ever owned. But it is not perfect.
For example, when towing a boat in hilly terrain using adaptive cruise control... FOrgetaboutit! the amount of hesitation in throttle/shift management (and energy waste) is laughable. I gave up on the radar cruise when towing.
Now, once in gear and "pulling" this thing is amazing.
But "over-revving" and weird shifting (especially when the engine is completely cold) is apparent. I have gotten the looks like "what are you doing" from friends riding with me, on occasion, when driving off in the cold and the truck shifts as if driven with a stickshift by a skittish and/or inexperienced operator... kind of like when we used to learn how to drive a stickshift.
I plan to keep this truck until I die, lol. Seriosuly. So, my thinking is - if another $300 makes it even more awesome to drive, I just need a little bit more of justification. I like pretty much everything about the PC27 from what's here in this thread, find it very convincing. I wondered about any potential long term harm but it is hard to imagine there is going to be any, assuming no abuse.
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No, I didn't know that! Dang, feel really stupid.BTW, you do know that the owner's manual tells us not to use cruise control when towing. Maybe that is their work around for not being able to get consistent shifting while towing and using ACC. My own experience towing a 6K# travel trailer through Colorado mountains and beyond, if I follow the directives in the manual - don't tow in Drive, S6 or lower, ECT PWR and no ACC -) it works very well. I am seriously considering the PC27 because I suspect it may give my foot some relief on long road trips.
Its down to $259.99 on Amazon if anyone else was thinking about it. That is like almost $100 off from when I first looked at it. I decided to order it now for my 18
https://www.amazon.com/dp/B07BMK5YH...olid=2YJPS2P4XSI7O&psc=0&ref_=lv_ov_lig_dp_it
Just thought I would share.
I'm also puzzled by another observation: when the ECT PWR button is ON the ECO fuel popup disappears - doesn;t matter what you do, the icon is gone. Well, my fuel use over 3-4 tanks has not changed though...
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This weekend I had the opportunity to change the gain on the PC during a Bill Burke trail leadership class (mcgaskins with with me). My goal was to see how my 2016 performed with factory setting and the multi-terrain select. My initial attempt was up some muddy hills and and no PC gain. I was shocked at how gutless the 2016 was. the hills were a bit steep but I was literally mashing the accelerator to the floor boards and barely making progress. I adjusted the PC gain up on my phone and it was like driving a completely different vehicle. I too can't imagine driving a 2016 without the PC. Off road with no PC it was miserable.
I run on 87 frequently. On this trip I filled both tanks (60 gallons) with 89 and it was fine.@mcgaskins @Mendocino you guys run on regular 87 octane, correct?
I’m running on 93, keep the ECM PWR on most of the time. With the /freshly TSB-ed transmission (Reflash) I love the truck but if I could wean it off of premium gas with the Commander, that would be cool. And besides, this thing has been sitting in my amazon cart for few months now, lol.
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@mcgaskins @Mendocino you guys run on regular 87 octane, correct?
I’m running on 93, keep the ECM PWR on most of the time. With the /freshly TSB-ed transmission (Reflash) I love the truck but if I could wean it off of premium gas with the Commander, that would be cool. And besides, this thing has been sitting in my amazon cart for few months now, lol.
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Done!I always run whatever the lowest grade is in both the LC and the LX as well as my old 2014 LC and haven't had any issues (higher altitude means lower octane is required though). The PC makes about a million times more difference than running different octane, and I've experimented with ethanol free gas too - PC is the way to go. Get that crap out of your cart and put it in your truck!![]()
Big, big thank you for bringing this up.I always run whatever the lowest grade is in both the LC and the LX as well as my old 2014 LC and haven't had any issues (higher altitude means lower octane is required though). The PC makes about a million times more difference than running different octane, and I've experimented with ethanol free gas too - PC is the way to go. Get that crap out of your cart and put it in your truck!![]()
That's more or less exactly how I feel about it. The PC is not an ECU reflash, it purely just modulates voltage output on whatever accelerator position sensor the truck is using. For me, it works: I can now adjust that throttle response curve to what feels a lot more natural, intuitive, and fun.So, people who understand their vehicles and drive "like we do" will be pretty satisfied with a more liner/direct response, and even be able to maybe get better MPG due to being better able to control the vehicle.
That's more or less exactly how I feel about it. The PC is not an ECU reflash, it purely just modulates voltage output on whatever accelerator position sensor the truck is using. For me, it works: I can now adjust that throttle response curve to what feels a lot more natural, intuitive, and fun.
There's been someone here in the forum, said to be working with DAP on a LC reflash. To be quite honest, the PC will probably do it for me, and I would no longer be seriously interested in a reflash given the limitations of our N/A engine and potential risks involved. I think.
In my 2017 LC200 I played with the ECT PWR button, 93 vs 87 octane, and got the TSB transmission reflash - each of those items can contribute to better driving experience.
The PC is about ten fold more radical/effective though.
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