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So. I have a new to me lb7. Of course it needed injectors. I did those with the injectorsdirect ones. No more smoke but it had a knock. Goes away if I kill the #7 injector. So I replaced #7 again. Still has a fuel knock the goes away when I kill #7. Being new to diesels I’m not sure if fuel knock is excess fuel or lack of fuel. Yes I’ve searched. Just trying to narrow down why #7 is still being an issue.
Thanks
 
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