What should fuel injector spray look like?
When it’s in the testing machine with settings adjusted for our ease of visibility, a working fuel injector spray should be pumping out a clear-coloured, fine spray – a light misting potentially.
Does injector spray pattern matter?
The spray pattern inside a fuel injector is important. The spray needs to be directed into the combustion chamber at the correct angle and atomisation shape. Any issues with this could cause engine misfire.
What causes distorted spray pattern in injector?
A dirty or clogged diesel injector is a common cause of the spray pattern becoming distorted. The wrong mix of air and fuel could also be affecting the path of the spray.