OBD Guide
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P044E

EGR Sensor C Circuit Intermittent/Erratic

P044E is an OBD-II diagnostic trouble code meaning: EGR Sensor C Circuit Intermittent/Erratic. Common causes: poor contact in the egr sensor connector c (oxidation, contact deformation), frayed or broken wire with intermittent contact. Estimated repair cost: $3–56.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$3–56 (est.)

Symptoms

  • The Check Engine light is on (may go out and come back on)
  • The code may be unstable - disappears and reappears
  • Unstable operation of the EGR valve
  • Increased NOx emissions
  • Sometimes - rough operation of the engine under load
  • Increased fuel consumption due to prolonged malfunction

Causes

  • Poor contact in the EGR sensor connector C (oxidation, contact deformation)
  • Frayed or broken wire with intermittent contact
  • Incipient failure of the EGR valve position sensor C
  • Vibration effect that periodically breaks the chain
  • The connector is contaminated with oil or moisture
  • Loose contact in the ECU connector

How to Fix

  1. Read the codes and record the error conditions (heating, load, vibration)
  2. Carefully inspect the EGR sensor connector C: check all contacts for oxidation and deformation
  3. Check the wiring for bending: swing the harness with the engine running
  4. Check the fastening of the connector - it should lock with a characteristic click.
  5. Use an oscilloscope to monitor the sensor signal while driving
  6. Replace the sensor or repair the wiring if a problem is detected
  7. Reset the code and conduct a long test drive in different modes

Related codes

P0400P0401P0402P0403P0404P0405P0406P0407P0408P044CP044DP044F

Error P044E by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P044E code mean?

P044E is an OBD-II diagnostic trouble code that indicates: EGR Sensor C Circuit Intermittent/Erratic

What causes a P044E error code?

The most common causes of P044E include: Poor contact in the EGR sensor connector C (oxidation, contact deformation); Frayed or broken wire with intermittent contact; Incipient failure of the EGR valve position sensor C; Vibration effect that periodically breaks the chain.

How do I fix a P044E diagnostic trouble code?

To fix P044E: Read the codes and record the error conditions (heating, load, vibration). Carefully inspect the EGR sensor connector C: check all contacts for oxidation and deformation. Check the wiring for bending: swing the harness with the engine running. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P044E?

Do not drive — repair immediately

How much does it cost to fix P044E?

The estimated repair cost for P044E is $3–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat