OBD Guide
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P1562

Quantity Adjuster Upper Stop Value

P1562 is an OBD-II diagnostic trouble code meaning: Quantity Adjuster Upper Stop Value. Common causes: malfunction of the fuel quantity regulator, fuel system contamination. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Unstable engine operation
  • Power reduction
  • Increased fuel consumption
  • Difficulty starting the engine
  • Dips during acceleration

Causes

  • Malfunction of the fuel quantity regulator
  • Fuel system contamination
  • Electrical wiring problems
  • Engine control unit malfunction
  • Mechanical damage to the fuel pump

How to Fix

  1. Check the condition of the fuel quantity regulator
  2. Clean the fuel system
  3. Check the integrity of the electrical wiring
  4. Test the engine control unit
  5. Replace the fuel pump if necessary

Related codes

P1561P1563

Error P1562 by Vehicle Brand

BuickCadillacChevroletChryslerGMGMCMazdaOldsmobileSaturnVolkswagen

FAQ

What does the P1562 code mean?

P1562 is an OBD-II diagnostic trouble code that indicates: Quantity Adjuster Upper Stop Value

What causes a P1562 error code?

The most common causes of P1562 include: Malfunction of the fuel quantity regulator; Fuel system contamination; Electrical wiring problems; Engine control unit malfunction.

How do I fix a P1562 diagnostic trouble code?

To fix P1562: Check the condition of the fuel quantity regulator. Clean the fuel system. Check the integrity of the electrical wiring. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1562?

Yes, but get it checked soon

How much does it cost to fix P1562?

The estimated repair cost for P1562 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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