I just bought a civic with a b18 swap was told it was p28 with a base tune and launch control but I just looked at the computer and it’s the stock p07 computer car runs and drives great but idles kinda high and sounds like it’s cammed on cold start up for 5-10 secs idle will go up and down slightly any help would be appreciated
Sound like there air in your cooling system ,try bleeding the air out the idle should return from 650-740 when engine warn up . I would do this first be for doing anything.
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