I have a GE Profile Gas Range (GE Profile™ 30" Gas Range Model#: JGSP44BEY(3)BB) and I have an issue with one of the burners (front left) not sparking when in the "LITE" position on the knob. I can light the burner with a match or lighter and then it works just fine. I have cross checked the spark ignitor by placing it on one of the other three burners with out an issue (it lights). Likewise, if I place a different spark ignitor on the left front circuit I don't get a spark.

Thoughts?

Sounds like the ignitor is working. Maybe there is a break somewhere in the wire that leads to the ignitor ? Can you trace the wire back and look for any possible weak, damaged wire ?

I have the same problem . How did you fix it ?

Seems like you have apart, so that's a start. Take a multimeter, check it where the ignitor connects. You should be able to see the voltage jump when the lite sequence is going (I'd use clips to be safe, vs. holding the leads on.

It might just be a matter of replacing that wire, or tapping into another wire for one of the other ignitors. You could just use the same gauge of wire to do this.