[Elliot1126]

Ok so a little bit ago my car started throwing codes for injector 3 and eventually started idling very rough. I bought a new injector off of fcp euro and when i checked it with the multimeter it wasnt in spec. But me being stupid i just installed it anyways cuz i figured it was good since it was brand new. Anyways after install, i started the car, entered the trim codes, and reset adaptions. My car was running smoothly but soon started a slight knock ans just a small shutter randomly. After driving it down the road for a bit the knock goes away. Its only when i first start it before drive it for a bit that it knocks for the most part. Does this sound like fcp euro gave me a bad injector or is this normal and do i just need to keep driving it?

[lnxguy]

How many miles have you put on it since you replaced it? When I did my VCG, my injectors were really loud at idle until I got on the road.

Also, if it was out of spec, why would you install anyhow?

[Elliot1126]

Well i put it in anyways cuz i was an idiot figuring i messed up the test and since it was new itd be good. But i havent driven it more than 100 miles or so since i replaced them.

[lnxguy]

Looks like you're going to replace that bad injector.