S2000 Under The Hood S2000 Technical and Mechanical discussions.

Car cuts out only first session at track

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Old 04-14-2019, 11:41 AM
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Default Car cuts out only first session at track

I've grown tired of this issue, but I can't figure out what it is. I don't street drive it often, but when I do it is perfectly fine. I've done 40+ days in the car and it has happened like clockwork for the past 30+.

In the first session ONLY the car will act like it fuel cuts coming out of corners a few times, it is always completely full on fuel when this happens. The car does not otherwise fuel starve until I get it down to two or three bars left or if I abruptly toss the fuel out of the bowl coming out of a longer left (read: exit slide). Data shows sustained cornering is 1.2g on non-banked corners, and as high as 1.7g sustained on banked corners. Perhaps tangentially related, the car sometimes wants to die coming back to idle but other times it is perfectly fine. I've replaced the IACV and the problems persist.

Has anyone experienced a similar issue?
Old 04-14-2019, 12:03 PM
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Got a baffle sump ?
Old 04-14-2019, 12:09 PM
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For oil? Yeah. Also have PCV plugged on both sides, front port dumps to a vented to atmosphere can, and VC baffle has been swiss cheesed so it isn't a sudden oil intake event like I'd figured when the issue first started to happen.
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