Contour Enthusiasts Group Archives Forums General Troubleshooting my "CHECK ENGINE" is on (URGENT please)

My "check engine" is ON into my dash.

I have the code reader for Ford (my car, Contour 1995 4Cyl 2L, OBD1 & EEC-IV.

I've made the procedure with KeyOn, Engine Off, my code for this is 57.

In the book, 57 mean : Octane adjust circuit grounded. AXOD neutral pressure swith (NPS) circuit fault; circuit open

After that, i've try the KeyOn, EngineRunning, the only code I have is 2.

2 mean problem with cylinder #2, but I don't know if the procedure for the KO-ER made correct.

But for the code 57, (the Octane adjust circuit grounded & AXOD neutral pressure swith (NPS) circuit fault; circuit open) mean?

And be good to me, explain in a "baby language" because my english is not very good...