Engine-Codes - Chevrolet - P1218 Chevrolet

P1218 Chevrolet Code - Injection Pump Calibration Circuit

- Code Popularity: 12,599 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1218 Chevrolet?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Powertrain Control Module (PCM) currently does not have a resistor value
  • Powertrain Control Module (PCM) is unable to read resistor value

Code Tech Notes

The P1218 code usually sets when the resistor is missing out of the PMD or the system has been disturbed and the ECU is re-learning the resistor value. Most of the times the problem is the missing resistor. Cycling the key many times will relearn the resistor value.

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How to Fix the DTC P1218 Chevrolet?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1218 Chevrolet code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P1218 Chevrolet Code Mean?

The Powertrain Control Module (PCM) uses a calibrated resistor internally in the Injection Pump to determine fuel rates. the resistor value is stored in the PCM memory. If the PCM memory has been disturbed or replaced the PCM will relearn the resistor value on the next ignition cycle. The code is set when the key ON or engine running and PCM does not detects a correct current valid resistor value, or it determined that it was unable to read the current resistor value.

P1218 Chevrolet Code - Injection Pump Calibration Circuit

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