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Code 4: (SGC Signal - Crank Angle)

WARNING: This page is about a different car, the 1994 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 Diag. Chart (SGC Signal - Crank Angle)

Courtesy of MAZDA MOTORS CORP.