P0007 medium Severity

P0007: Fuel Shutoff Valve A Control Circuit High

Engine may not start, stall, run rough, or lose power due to interruption in fuel delivery

Overview

OBD-II diagnostic code P0007 indicates a high voltage condition in the control circuit for the fuel shutoff valve ‘A’, often due to wiring faults, overvoltage from charging system, defective valve or related electrical issues.

Common Symptoms

  • Check Engine Light illuminated
  • No-start condition or difficulty starting
  • Intermittent engine stall while driving
  • Sudden loss of power
  • Erratic idle or rough running

Most Common Causes

Faulty fuel shutoff valve (solenoid) high

Internal failure can cause high control voltage reading to ECU

Wiring harness issues (open, short to power, poor connection) high

Broken, corroded, or loose wires/connectors can lead to high circuit readings

Charging system overvoltage (alternator/regulator) medium

Alternator producing excessive voltage can feed into valve circuit triggering high input code

Faulty relay or blown fuse supplying fuel shutoff valve medium

Supply circuit faults can mimic high control circuit voltage

ECU/PCM driver output fault low

Internal ECU driver stage failure causing incorrect circuit voltage

Diagnostic Steps

  1. Retrieve trouble codes with an OBD-II scanner and note any accompanying codes
    Expected: P0007 present; potential related codes in wiring or fuel system
    Interpretation: Confirmation that the fuel shutoff valve control circuit high condition exists
  2. Visually inspect wiring harness and connectors at the fuel shutoff valve
    Expected: No visible damage, corrosion, or loose connection
    Interpretation: Good connectors/wiring reduces likelihood of open/short circuit
  3. Measure voltage at the shutoff valve control pin with ignition on (engine off)
    Expected: Voltage within spec (approx 12V nominal)
    Interpretation: High voltage reading suggests overvoltage condition or short to power
  4. Check alternator output and battery voltage
    Expected: Voltage within normal range (about 13.5–14.5V)
    Interpretation: Overvoltage points to charging system issue influencing control circuit
  5. Test fuel shutoff valve resistance and continuity
    Expected: Resistance within manufacturer specification
    Interpretation: Out-of-spec valve indicates internal failure requiring replacement

Repair Solutions

Repair or replace damaged wiring/connectors medium
Estimated Cost: $50 - $300

Fix harness issues and secure connectors to restore proper circuit

Replace fuel shutoff valve (solenoid) medium
Estimated Cost: $150 - $600

Valve replacement when tests show internal fault

Repair or replace voltage regulator/alternator medium
Estimated Cost: $300 - $800

Correct overvoltage from charging system

Replace fuel shutoff valve relay or fuse easy
Estimated Cost: $10 - $100

Simple electrical supply fixes

ECU/PCM repair or replacement hard
Estimated Cost: $500 - $2000

Only if confirmed fault in control module

Common Misdiagnoses

Avoid these common diagnostic mistakes:

  • Assuming high voltage is only ECU fault without checking alternator or wiring
  • Misinterpreting code as general fuel pump failure rather than shutoff valve control circuit

Frequently Asked Questions

What does the P0007 code mean?

When your OBD-II scanner reads P0007, it means: Fuel Shutoff Valve A Control Circuit High. This code is related to the vehicle's Fuel System.

Should I stop driving if I have P0007?

You should treat P0007 as a medium issue. Engine may not start, stall, run rough, or lose power due to interruption in fuel delivery

How do I know if I have code P0007?

The most typical signs are: Check Engine Light illuminated, No-start condition or difficulty starting, Intermittent engine stall while driving.

What causes the P0007 code?

This code is frequently triggered by: Faulty fuel shutoff valve (solenoid), Wiring harness issues (open, short to power, poor connection), Charging system overvoltage (alternator/regulator).

What is the price difference for fixing P0007?

It depends on what needs to be fixed. Replace fuel shutoff valve relay or fuse repairs are cheaper (~$100), while ECU/PCM repair or replacement repairs are on the higher end (~$2000).

Does code P0007 apply to Dodge vehicles?

Yes, P0007 is a generic code that applies to all OBD-II compliant vehicles, including Ford, Toyota, Honda, Chevrolet, Nissan, Dodge, BMW, and more.

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