It might if the injector tip is dirty. If the problem is the injector dripping into the cylinder while engine is stopped it won,t make any difference.
For the injector cleaner to work you need to make the engine work hard and have the cylinder temps up to burn off the crud. Idling is a waste of time. Put it on the road and put you foot in it.
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Richard Rhonda Ty and Alex Entrekin
1995 Newell # 390 DD Series 60, Allison World Trans
Subaru Outback toad
CoMotion Tandem
Often wrong, but seldom in doubt
Rhonda's chronicle https://wersquared.wordpress.com/
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