my friends have a b18c gsr block B16Head in ek civic. B16A2 OBD2A ECU

we controlled everything about knock sensor but engine light is still on give 23 Engine code.
When the car is warm up and 3000 rpm %10 throttle response engine light is on.

-We un plugged battery and waited 5-10 min. but ıt didnt changed

-We checked dist., timing,fuel octane, knock sensor,knock sensor cable all of them Worked but still light on


Anybody Have an idea ?

 

Make sure you have continuity from the ks engine harness connector to the correct ecu pin, must be a shielded wire, make sure ks threads are extremely clean. Check for poor connection where engine/chassis harness is.