Knock sensor
Ill take that 89 knock sensor you have from what ive read it should do the trick!! Let me know how to get a hold of you im new to site.
1999-1996 3.0L (S) 182" Taurus F5DF-12A699AB,F6DF-AA,F6DZ-A 29060
1995-1989 3.8L (R) 232" Thunderbird (SC) E9SZ-12A699A,B,F3LY-A 29059