Error Code 1200 (Overspeed): Complete Field Diagnostic & Multimeter Walkthrough
Detailed troubleshooting and multimeter diagnostic guide for Error Code 1200 (Overspeed): Complete Field Diagnostic & Multimeter Walkthrough. Resolve Engine speed exceeded 4,320 RPM (72 Hz) for 3 seconds with factory resistance specs, manometer fuel pressure tests, and step-by-step repair instructions.
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