OBD Guide
ENFRDEESPT

P01A7

Alternative Fuel Rail Pressure Sensor Circuit Intermittent/Erratic

P01A7 is an OBD-II diagnostic trouble code meaning: Alternative Fuel Rail Pressure Sensor Circuit Intermittent/Erratic. Common causes: malfunction of the fuel rail pressure sensor, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unstable engine idling
  • Power Loss
  • Increased fuel consumption
  • The engine stalls
  • Check Engine light comes on

Causes

  • Malfunction of the fuel rail pressure sensor
  • Open or short circuit in wiring harness
  • Bad contacts in the sensor connectors
  • Circuit Grounding Problems
  • ECU malfunction

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Check the quality of contacts in the connectors
  3. Check sensor resistance and reference voltage
  4. Check circuit grounding
  5. If necessary, replace the fuel rail pressure sensor

Related codes

P01A8P0190P0191P0192P0193

Error P01A7 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P01A7 code mean?

P01A7 is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Rail Pressure Sensor Circuit Intermittent/Erratic

What causes a P01A7 error code?

The most common causes of P01A7 include: Malfunction of the fuel rail pressure sensor; Open or short circuit in wiring harness; Bad contacts in the sensor connectors; Circuit Grounding Problems.

How do I fix a P01A7 diagnostic trouble code?

To fix P01A7: Check the integrity of the sensor wiring harness. Check the quality of contacts in the connectors. Check sensor resistance and reference voltage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P01A7?

Limited driving only, diagnose soon

How much does it cost to fix P01A7?

The estimated repair cost for P01A7 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat