Oil in TBI unit..

[SS66]

I went to take a look at my fuel injectors... I found something ugly when I removed that plate that allows you to get to them. There is a rubber hose running from the valve cover to the back of the tbi unit where the injectors are housed. Well there is a bunch of black stuff in there. This isnt carbon.. looks like OIL. I assume this is pretty bad..Its not pooling in there yet.. but there is a decent amount.. any ideas on what to do?

Also.. how does one diagnose whether or not an injector is bad?

Thanks

 

[ryoken]

Blowby... Rings are tired or worse... Mileage?

You can usually tell an injector is troubled by the spray pattern...

 

[randy88k5]

You can see the spray pattern from the injectors pretty well if you use a timing light. It will freeze the image making it easier to see the shape. It should have a nice uniform cone shape to it, and no large droplets of fuel.

What problem are you having that makes you suspect the injectors?

 

[SS66]

Im smelling gas and it seems a bit sluggish. Im gonna replace the Oxygen sensor and fuel filter before I invest in new injectors to see if that helps..

 

[Thunder]

Sounds like a lack of maintenance problem to me . Change or clean your PVC valve and replace the fuel filter.

 

[scooter122983]

Look at the conections, if there bad replace them, if they look like **** then replace them, if there 16 years old replace them. Use your head and common sense.

 

[btolenti]

the vacuum line on the rear of the TBI should go to the MAP, not the valve cover....or am I mistaking which line you are talking about?!?!?!?! Or are you talking about the 1/2" line that goes to the air cleaner spacer ring????