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+--- Thread: what does this butterfly valve do? (/showthread.php?tid=4126)
what does this butterfly valve do? - tree98 - 02-09-2019
This is on a cummins L9 where the CAC tube attaches to the intake but my X15 has one also. What does it do?
[attachment=4647]
RE: what does this butterfly valve do? - Rawze - 02-09-2019
(02-09-2019 )tree98 Wrote: This is on a cummins L9 where the CAC tube attaches to the intake but my X15 has one also. What does it do?
choke the intake to that the engine can draw more EGR gas in.