hey guys, I drive a 90 crx si with a zc engine, my ecu is giving me a code 4 which is by my knowlege the CKP Sensor (Crankshaft Position Sensor). Does anyone know what that is and where i can locate it on my engine? Thanx

 

It's on the shaft of and inside the distributor.

 

ussually the dist. shaft bearing goes bad and heats up all the sensors in there. Quite possible, You may need a dist. Part stores don't have them. Buy a reman. or used. That's what I did with my b16a Dist.