Its me again, new tech. I had a 2001 nissan sentra today, 1.8l. underhood emission label said timing at 9btc but no distributer and did not say about no adjustment needed. I put n/a for timing. i refered to 2014 motor book and said timing at #1 with tps disconnected. still i went with my guts and put n/a. Did i do it correctly?