is that neg or pos at cruise and idle?
its not super horrible either way. seen worse zzp tunes.
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I looked at my vacuum lines last night and didn't find anything that really stood out as being bad. I did replace a dry rotted line that goes to the SC by-pass actuator but that didn't make a difference with my fuel trims this morning. ill check the line going to the fuel pressure regulator next but I have to wait for the rain to stop.
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