Bimmerfest - BMW Forums - View Single Post - Knock Sensor #4
Thread: Knock Sensor #4
View Single Post
Old 09-25-2007, 07:35 PM
cn90 cn90 is offline
Officially Welcomed to the 'Fest
Location: Omaha NE
Join Date: Mar 2006
Posts: 14,352
Mein Auto: 1998 528i 5-sp 140K+
Was the knock sensor installed BACKWARD???

1228 Knock Sensor 4 This code is set when Knock Sensor #4 has sent multiple signals or a break or short has occurred in the sensor or its wiring. Check the Knock Sensor and its wiring for defects. Check the grade of fuel being used (RON>91). Increase octane if necessary.

Last edited by cn90; 09-25-2007 at 07:39 PM.
Reply With Quote