P1313 EGR Position Sensor Low Voltage
The P1313 code indicates that the Powertrain Control Module (PCM) has detected a signal from the Exhaust Gas Recirculation (EGR) valve position sensor (EGRVP) that is below the calibrated minimum threshold during self-test or normal operation. This suggests the EGR valve is not reaching its expected position, the sensor is reporting abnormally low voltage (short to ground or open circuit), or there is a deviation in the PCM's internal calibration relative to the valve's learned curve.
01. Most Common Causes
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Rough idle or hesitation during acceleration
03. Step-by-Step Diagnosis
Scan for codes and freeze frame data
Inspect EGR valve and connector for carbon buildup, damage, or corrosion
Test EGRVP sensor signal voltage with a multimeter (should be 0.5-4.5V depending on position)
Check for shorts or opens in the sensor wiring
Perform EGR valve functional test using a scan tool
If all else fails, test PCM output signals or replace PCM
1. Frequently Asked Questions
Is it safe to drive?▼
You can drive short distances, but the vehicle may experience rough idle, hesitation, or reduced fuel economy. Prolonged driving could lead to increased emissions or further drivability issues.
How much does it cost to fix?▼
Repair costs typically range from $150 to $500, depending on whether the EGR valve needs cleaning or replacement, and whether wiring repairs are needed.