Emission testing-messed up injector?

[grey5.0beast]

Ok well heres the story. I took my car to get tested for emissions and while I'm driving home i hear a clicking sound from when it was started. I looked under the hood and listened to the engine in idle and I heard a clicking sound from the first injector(closest to front) on the left. I'm thinking it is injectors but I'm not sure. Any way, what is involved in emisions testing? I thought they just hook up a thing to your exhaust and watch a meter and rev it or something, but what else could it be? I'll get into it tomorrow and pay a visit to those guys to ask them what happened and if it did it during testing. Sorry for it being so long.

 

[zingi4532]

Sounds like maybe the spark plug wire for cylinder 1 might have gotten unplugged- have you checked that? During an emission test, they usually put a clamp on the #1 cylinder wire to get an accurate rpm reading- that's the only thing i can think off-
Good luck

 

[grey5.0beast]

thanks I,ll be sure to check that.

 

[grey5.0beast]

Well, I checked the first spark plug wire and thats not it. so please keep the ideas coming. Thanks

 

[HISSIN50]

when an injector clicks, it generally means it IS working. worry if it does not click. have you used (carefully) a stethoscope or other instrument to find the noise? i liked the plug wire idea. if it becomes slightly unseated, it will make a popping as the spark is discharged.

i might start the motor and turn off the lights and see if you see any lightshows from the wires.

good luck.

 

[giddyup306]

How do you know it's the injector anyways? Did you put a stethoscope on it to make sure was the injector and not something else? The emissions varies from state to state. For the most part they just stick a 5 gas up the tail pipe and run it under a load on a dyno. Some states also check for evap. emissions by looking for a faulty gas cap or even for HC's around the vehicle. Pretty harmless tests. It is probably not the emissions guys fault.