When i just have the car idling and i pop the hood i can hear a buzzzzing noise from the tbi is that good or bad i just never thought they were so loud


thanx

 

your open element is what makes it so loud. The TBI injectors are quite noisey. Paper just doesnt cut the noise down like the stock steel air filter housing.

 

To Check the TBI Fuel injectors, you can use a volt meter and remove the leads ,set the meter to OHMs and touch one lead with one test wire and the other lead with the other test wire on one injector at a time and if the readings are between 1.0 and 2.0 your ok if they are out of that range they are fried...also if they are clicking really really bad........ Replace em

 

If you think they're loud now, put in an underpulley kit.. that quiets down the engine bay area so much that the injectors almost fooled me into thinking my rocker arms were clacking...