fuel injector replacement

I installed new "o" rings on fuel injectors in my 1997 2.2 cavalier. Now car won't turn over.

Took the starter in and had it tested they said it was O.K.

Any suggestions?

I installed new "o" rings on fuel injectors in my 1997 2.2 cavalier. Now car won't turn over.

Took the starter in and had it tested they said it was O.K.

Any suggestions?

Just replaced a fuel injector as well and the engine would not turn over. Removed spark plugs and pressure was released, now engine floods with gas and leaks all over front of engine.

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I am having the same problem with my 2.2l cavalier, I changed a fuel injector and my eng. floods with gas and won't crank. any suggestions.