Is there a way to check a injector?

[rakkasan]

I believe I have one that is stuck in open. I keep fowling out the #1 plug (within 150 miles) & mile mileage has turned to crap. Also, when hit the gas beyond 50%, there is a very pronounced tick.

The wideband is kind of erratic, but it's not going lean...

 

[MK3Brent]

Have you tried listening to each injector with something metallic?
Hear if it's opening or operating.

 

[rakkasan]

Have you tried listening to each injector with something metallic?
Hear if it's opening or operating.

Haven't tried that, but I'll give it a shot. Thanks Brent!

 

[2543arvin]

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=FI&P=83
Try this