Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
To diagnose the P1658 Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.
This diagnostic applies to internal microprocessor integrity conditions within the Fuel Injection Control Module (FICM). The Diagnostic Trouble Code (DTC) will be set when there is an internal failure in the FICM for less than 1 second.
Need more information on how to fix the P1658 Chevrolet code? Get Access to Factory Service Manuals
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