Possible to modify shift timings? ECU chip?

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Nov 18, 2016 | 02:10 PM

#16

Gville350

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From: South Carolina

Quote:

Originally Posted by Rezno

I think you're supposed to unplug the battery, wait 30 seconds, and plug it in again. Someone correct me if I am wrong.

Though there isn't an exact figure, I'd definitely have the battery disconnected it more like 15-20 minutes. Then immediately after reconnecting, go out and drive it like you would it to perform on a daily basis. It picks up your driving habits and shift points within 10 minutes or so I've found.

Nov 18, 2016 | 02:26 PM

#17

Tro209

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From: California

Actually the tune along with the 50hp claim is for the IS350 and any other car that uses the 2GR-FSE. The IS250 as far as I know can only be tuned by TTFS at the moment with a gain of about 12whp and lb-ft. Which is better than nothing I suppose.

Nov 21, 2016 | 10:33 AM

#18

Rezno

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From: OR

Quote:

Originally Posted by Gville350

Good to know. Judging by the fact that usually my transmission shifts early I guess its safe to say the previous owner didn't drive it really hard lol.