Car suddenly running lumpy! After an afternoon's troubleshooting, I've determined that I've got a stuck injector. Applying 4v to the other injector units produces an audible 'click' but does nothing for the dead one. Resistance is the normal at ~2 ohms, so it's not an open coil. I'm assuming (?) that a bit of dirt has worked its way into the mechanism, and that the piston / valve mechanism is jammed. Are the injector units remotely user serviceable?
If buying an injector, or set, from a junkyard, is there anything specific to look for?
Greg wrote in news:pGfin.21940$ snipped-for-privacy@newsfe17.iad:
About the only thing you can do is carefully push the pintle in to see if that will un-stick it. Which you ought to do before condemning the injector! Injectors sometimes come from the factory in a stuck condition, and the tech needs to unstick it as I describe.
Plus you can pull the basket filter and backflush the filter with throttle body cleaner.
Replace as a set. All the "new" ones should come from the same car.
Also make 100% certain you pull the injectors from the exact same year and model as yours. Injectors from various models may look identical outside, but may be mechanically and electrically different inside.
I believe the same year Prelude has the same injectors as your Accord.
Keihin injectors of this vintage have a small rectangular pad on one side of the black top. This pad has four circles with characters in them, some of them Japanese. I can't remember if the characters are different from one injector type to another , but if they are, it will give you a clue as to their nature. Bring a toothbrush to help make the characters more readable.
And yes, you need new O-rings. Replacing the rubber bumpers top and bottom is a good idea as well.
After pulling the injector, I fiddled with it a bit now it's clicking nicely when juiced. The old rail/injector o-rings were surprisingly dry and brittle. I'm off to pick up new ones and hope to be driving this afternoon.
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