Engine code p0113 on 2000 Volkswagen Jetta

Guages flicker when i try and turn on car so the computer gave me two codes one with ECM and another having to do with the main gasket. Sinced it seemed like an electrical problem ECM and battery where replaced recently. But the same problem is still occurring ? Please help

Asked by for the 2000 Volkswagen Jetta

Camshaft position sensor B. Actuator circuit bank 1.

Hope this helps