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Old 10-05-2016, 12:35 AM   #13 (permalink)
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CT - '11 Lexus CT200h Luxury
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Originally Posted by sameb View Post
I've also noticed that the vehicle is a lot harder to start even after a 50 degree night. It's not winter yet! I'm due to replace my battery so hopefully that makes it easy enough.
Originally Posted by Frank Lee View Post
Ethanol just plain doesn't vaporize as easily so cold temps with a cold engine affect startability. Note that it can be bitterly cold, as in below 0F, and a warm engine will run perfectly on E85 even a non-FFV. For example if I'm doing a 300+ mile trip in bitter winter cold I can fill up early on in the trip with E85 and burn that down just fine, then I top off with regular so the next cold start is uneventful.
The other main issue with this type of "conversion" is that it does not alter the injector dead time, starting and advance tables in the ECU. These will contribute to harder starting that gets worse at lower temperatures. I know of vehicles that run on E85 and methanol that start fine at very low temperatures, but they have had the ECU correctly tuned to achieve this.

Swapping injectors is at best, a crude hack that has the potential for lowered efficiency and engine damage.

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