Diagnostic Aids

1995 Chevrolet Astro Van Cargo, RWDSECTION Diagnostic Aids

Check sensor connections for proper fit. Also check for proper installation of PROM/MEM-CAL.

Fig 1: Code P0328 Schematic ("S" & "T" Series 4.3L - VIN Z) Knock Sensor Open
G95J28091
RENDER: 1.0x

NO RELATED

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Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.