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Old 04-13-2015, 10:03 AM   #49
AyJay
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Join Date: Apr 2013
Drives: 22 GR86, 13 FR-S, AP2 S2000
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1st time i ran at Thunderhill after switching to E85 i experienced this problem at Turn 8 (high speed left hander). It started out as a sputter when my tank dropped below 1/3 on the gauge. It behaved much like the traction control fuel cut for a brief second. I kept running laps that session since I wasn't sure what the hell was up and eventually it had to limp the car back onto the paddock as it would just sputter as if it was in some sort of limp mode.

My solution was simple. Never start a session with less than 1/2 a tank of E85 and replenish after every session. Haven't had an issue since.
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