hey yall have a 91 305 tbi auto question since this is my first tbi car ive owned , as i previous had a 86 camaro v6. so with the car in park and running on top of the throttle body is only 1 injector suppose to be spraying out fuel or both cause i only see my driver side one putting out alot and the other not. thanks

 

They spray pattern is the same on bolth injectors assuming thy are in good condition. You can use a timing light hooked up and pointed at the injectors to see the pattern better or drips.

 

Does the engine idle smoothly?