Quote:
Originally Posted by 86TOYO2k17
I should correct myself, 4th tops out at 128mph, and 5th at 5100rpm is 128mph, at 5200rpm its 130mph, 5300rpm is 132mph which is the fastest you'll ever get in a NA AT and it'll take probably 20seconds WOT from 128-132mph so you need a long stretch of road.
I can hit top of 4th in any mode, D, D+sport, or manual mode as long as I'm WOT doesn’t matter. Ive gone 130+ like 2 times as i don't see the point. But it stayed in 5th until i let off both times.
Assuming you have stock final drive and are WOT it shouldn’t shift from 4th to 5th before at least 124mph. If it is I'm not sure. You only have bolt ons you could flash to stock and test it with stock tune.
This shouldn't apply to 4th gear shifting early, but i could see with NA power that around 5200-5300rpm in 5th based on various load parameters and the lack of acceleration that it’s automatically shifting to 6th thinking your “cruising” at 130mph.
But try to record it and or flash to stock tune and try again.
But it is 100% physically impossible for a NA auto to hit 230kmh/143mph unless your going downhill with the wind pushing behind you.
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Now you got the problem all correct. Yes it shouldnt shift but it does. The thing is before the bone stock at very beggining, I had an issue with a cell code, it was P0391 camshaft sensor position, so from time to time I was getting a cell when I was doing WOT, sometimes very often. Before I went stage 2+, Ive ordered official shims to camshaft position sensor. You seems not aware about the issues since you do have a newer car. So the official fix at Toyota`s diller was to order shims, so I did that. Shims come in a pack of 10items, whereas youd have to pick one of those sizes that fits specifically a certain car, they ranged from 0.5 to 2mm. I had a lowest possible distance so 0.5mm fitted my case. Firstly, they installed not the exact thinner one, but slightly thicker. To my surprize, car felt like it was lacking power significantly, without a doubt that also indicated the problem with a top speed right after, but it was doing way differently, while I was able to reach 199kmh it was constantly switching from 5 to 6 speed itself and the speed was 199/200 kmh, I was shoked. Right in a while cell triggered again, we changed the shim to a proper one and never had any issues afterwards.
Im aware now that OFT Stage2+ has this sensor disabled, so Ive tried both options with the shim or without, but it doesnt make any differences at all. Flashing back to stock is definetly possible, but actually I had prety the same case at stock car after the fcking shim. I do believe maybe its their computer after they connected it at Toyota it might changed something, who knows. But flashing back would help to resolve the issue. So the problem is complicated. Im not sure what to do honestly, apart maybe to ask them to investigate TCU or whatsover, Im frustrated about the case overal so hard.