Hey, I'm having problem with my B18c engine. It keeps giving me a code 4 on my check engine which is the crank angle sensor. My car is a OBD 1 and I had switched ECU and Distributors and the Check engine light still on. Than I trying check the wires from the distributor stright to the ECU and that was fine. I tried playing with the timing and the check engine light still on. I am out of idea's guys, anyone think they can help me out? The Code 4 on the check engine light came on after I did a head gasket change and I threw on a Rev Hard turbo kit.