diff --git a/configuration/O2.md b/configuration/O2.md
index bbd5a5b..80a028f 100644
--- a/configuration/O2.md
+++ b/configuration/O2.md
@@ -2,12 +2,11 @@
 title: O2
 description: 
 published: true
-date: 2020-01-07T01:37:08.065Z
+date: 2020-01-16T12:00:19.681Z
 tags: 
 ---
 
-AFR/O2
-------
+# AFR/O2 (Closed loop fuel)
 
 AFR/O2 (for **A**ir:**F**uel **R**atio), dialog controls the closed loop fuel control, used for adjusting injector load based on input from an exhaust oxygen sensor (O2 sensor). In conjunction with the AFR Table, the closed loop AFR system will compare the actual O2 reading with the current target fuel ratio and make adjustments accordingly.
 
@@ -15,8 +14,7 @@ Use of a wideband sensor and controller is **strongly** recommended, however bas
 
 Note that closed loop fuel control is not a replacement for a poor tune. Many good configurations do not used closed loop control at all or only allow it very small adjustment authority.
 
-Settings
---------
+## Settings
 
 Speeduino supports 2 closed loop algorithms, each intended for different configurations: