Getting a code 54 with check engine light(01 if not flashing).

It's a "stepping mtr" error. I am assuming it's a bad sensor plug-in, from the last time I removed the throtle body's.

Does this condition effect performance? Feels like it fattens the mix but, otherwise, it does not effect performance.

I am at the end of my reach to the plug w/out removing the pipe.

Do I need to borrow a little girl to fix my ski???!!!