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Code 4: SGC Signal - Camshaft Position Sensor

WARNING: This page is about a different car, the 1995 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Trouble Code No. 4 SGC Signal - Camshaft Position Sensor

Fig 2: Trouble Code No. 4 Camshaft Position Sensor Circuit Diagram