OBD Guide
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P0323

Ignition/Distributor Engine Speed Input Circuit Intermittent

P0323 is an OBD-II diagnostic trouble code meaning: Ignition/Distributor Engine Speed Input Circuit Intermittent. Common causes: unreliable contact in the engine speed sensor connector, damage to wiring (chafing, interference). Estimated repair cost: $22–78.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$22–78 (est.)

Symptoms

  • Sudden short-term engine stops while driving
  • Unstable idle
  • Jerks when accelerating
  • Difficulty starting the engine
  • Check Engine Light Is On (Intermittent)

Causes

  • Unreliable contact in the engine speed sensor connector
  • Damage to wiring (chafing, interference)
  • Contamination or damage to the drive wheel gear
  • Worn or failing sensor
  • Weak sensor fastening (the gap varies)

How to Fix

  1. Read codes, check for associated crankshaft/camshaft sensor errors
  2. Inspect the sensor connector, clean the contacts, make sure the fixation is secure.
  3. Check the wiring for chafing and proximity to high-voltage ignition wires
  4. Check the air gap between the sensor and the gear (normal: 0.5–1.5 mm)
  5. Inspect the drive disc gear for damage.
  6. Replace the sensor if it is confirmed to be faulty

Related codes

P0320P0321P0322P0335P0340

Error P0323 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0323 code mean?

P0323 is an OBD-II diagnostic trouble code that indicates: Ignition/Distributor Engine Speed Input Circuit Intermittent

What causes a P0323 error code?

The most common causes of P0323 include: Unreliable contact in the engine speed sensor connector; Damage to wiring (chafing, interference); Contamination or damage to the drive wheel gear; Worn or failing sensor.

How do I fix a P0323 diagnostic trouble code?

To fix P0323: Read codes, check for associated crankshaft/camshaft sensor errors. Inspect the sensor connector, clean the contacts, make sure the fixation is secure.. Check the wiring for chafing and proximity to high-voltage ignition wires. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0323?

Do not drive — repair immediately

How much does it cost to fix P0323?

The estimated repair cost for P0323 is $22–78. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat