Fuel Injectors Test?

[Goodguy162000]

I have this thing where my car runs rich only when it's really hot. I'm trying to narrow things down and I somewhat suspect the injectors as I'm running out of possible causes... tell me, does anybody know of an easy inexpensive way to test fuel injectors?

 

[95 gsturbo]

I want to find this out also!

 

[dawg316]

me too

 

[Goodguy162000]

Well, now that we're all interested... who's going to be the teacher? Anyone?

 

[SoonToBeDSM06]

I forget who on this forum that told me how to do it but I wanted to find out if I had a leaky injector. What he told me to do was unbolt the fuel rail and don't relieve the pressure. grab a bowl or something to catch the fuel with and get 2 wires with alligator clips. Connect the positive cable to the battery or to a wire after a fuse if you want to be safe. Make sure the injectors stay in the rail and turn the car on so the pump can turn on. You need this pressure. Look in the service manual or something to find out which wire on the injector is positive. put the alligator clip on that one and place another one on the negative tab. Then while you have your bowl under the injector, take the negative to the engine to ground it out and it will shoot fuel into the bowl. Only tap it, DO NOT HOLD IT or it might screw something up. If it drips after you squirt it then its a leaking injector. It also tells you if they need cleaned as it will be spraying a mist or a stream of fuel.

Don't flame on me for doing this because this is the procedure I did and my injectors still work fine. If this test is stupid or whatever to anyone then OK. But I did it with no damage to the injectors.

 

[99gst_racer]

Just send them off and have them cleaned and flow tested. I believe FIC does it.

 

[Goodguy162000]

Great idea... send 'em off and have 'em tested. I really don't want to spend too much money on this as I could just buy a new set if it came down to it. I live in Utah... anywhere local do it? Like some string of shops I might have here?

 

[99gst_racer]

Well, the injector flow test machines are rather expensive, so I doubt you will find one locally. It's not a machine that many automotive related facilitys invest in. Just start calling around to any and all shops that specialize in fuel injection. Who knows - you might get lucky and find one close by.