Hey guys,

Ok quick back story of car, car was gifted to me from one of my customers. timing belt was broken and it bent every single valve. Replaced all the valves, head gasket and timing belt. Car ran great except the 4WS was lit all the time and the ABS light would come after about 200ft of moving.

So for the 4WS, traced to the 4WS module not getting power, found cold solder joints on two big relays and one small resister, replaced all three just in case and re-soldered them to the board. No 4WS light and 4WS functions perfectly.

Now, ABS light still comes on after about 200ft, and now the CEL is coming on after about a mile of driving. Check for flash codes, CEL is a code 23, ABS light gives me no flash codes. Replaced the knock sensor for the CEL and im still getting the code even after resetting the ECU by removing the 10amp fuse.

So three questions,
-Has anyone had a ABS light with no stored codes before?
-What else could cause a code 23 except the Knock sensor and wires?
-Also, whats a good alignment set up for autocross? i cant find anything anywhere for the 4ws cars

thanks guys

 

First off, congrats on the 4WS Prelude. I have a 92 4WS as well and love it. This flowchart should cover everything you need to diagnose the knock sensor DTC.