Yes, but with fuel injection you need to be careful.

Start with about 1/2 cup of water and a warm engine. Take the cover off the throttle body to expose the vacuum tree. With the engine running, take one of the plugs off the tree and put on a long length of vacuum hose.

Pinch closed the hose, insert the other end of the hose in the water. Then, very carefully allow some water to be sucked in to the manifold. If you let in too much water, and the suction is powerful!, you could wind up with a cylinder full of water.

Water does NOT COMPRESS!!! If you get too much water in a cylinder, you will probably break a connecting rod and then it will be time to buy a new engine.

You do want just enough water to show a light amount of steam out of the exhaust.

There is a product in autoparts stores called Seafoam. It works like water except it has better cleaning properties. Pour 1/2 in the tank and feed the other half through the vacuum hose - slowly until the engine dies. Wait 15-30 minutes and restart the car, watching the cloud of steam coming out of the exhaust.

Klaus
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Praying for Cynthia Amendt, heaven bound