Circlotron
New Member
- Joined
- Mar 12, 2011
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- 672
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- Location
- Melbourne
- Members Ride
- VP Exec 5L BT1 ex cop, ex taxi
Maybe not the LPG mixer so much as the IAC air path. Starting at the 38 sec point in the vid https://youtu.be/JNQBHEARW6s?t=38s as the idle speed bottoms out you can hear the IAC start to flow more to pull the revs up. It would be open wider when the engine is cold so that would make it noisier, if that is what it actually is.