When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I remember a while back someone telling me about someone that can test injectors without pulling them out of the engine. Does anybody know anything about that?
All you can do is run a Cylinder Contirubtion Test with a scanner, engine has to be running and at least 160*. This will tell you which cylinders (if any) are not contributing as much as the others.
There's also a 'Buzz test' which from what I have found is completely useless...
Otherwise, there's nothing you can do.