the mechanical pump can hold a bit of trash, I ususally spray some power tune thru it and let it sit, them flush it with fresh gas. Injector RX charges $18 per injector, they have a quick turn around, but shipping takes a while, usually about 10 days from the time I ship them till I get them back. Ask the shop how they clean the injectors, if they install new screens and do they perform a flow test when done(Injector RX does). Some of the local shops around here say they clean injectors, they put them in an ultrasonic cleaner and spray carb cleaner thru them. Not the way to do it my opinion.
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