injector problems

godavid

SCCoA Member
The car idles rough and it passes codes. I'm wondering if one of the injectors is not functioning. How can I find out if I have a bad injector without pulling the plugs? thanks
 
The car idles rough and it passes codes. I'm wondering if one of the injectors is not functioning. How can I find out if I have a bad injector without pulling the plugs? thanks

I assume when you say it passes codes, that you don't mean it passes along a series of codes. Instead you mean when checking for codes, it Passes.

I would next suggest you do a cylinder balance test. It's triggered when doing the Key On Engine On test, once the test completes if you raise the engine speed 600 RPM with the throttle, it'll start the cylinder balance test.

That may point you to the cylinder you want to check and eliminate any excess plug pulling.
 
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