I'm looking for the crank sensor and i can't find it to replace it.  Can anyone help me?

backside of block near the middle, right below the block heater and above the oil pan.

hey thanks alot man.  i'll try to tackel that tomorrow.  I love driving my TGP, but man, after you fix one thing, it seems that something else goes wacky, for example, it was idoling ruff, so just for curiosity, checked the spark plugs and wires, their fine, then after putting the plugs back in, it idols fine, but now backfires.  Obviously i'm no master mechanic, but somethings just not right.

Crossed plugs wire would be my guess.