Discolored oil.

[bowtiekid]

1. Your going to pull the fuel rails off the intake but leave the injectors alone.

2. Lift up the fuel rails to where you can see each injectors base clearly.

3. Turn the key (or apply 12v to fuel pump primer on pass. fender well) and listen for the fuel pump to prime and see if the injectors drip fuel out of the bottom.

But more than likely if you had a leaky injector you would bend a connecting rod... well depending on how bad it was leaking.

-Mark