OBD Guide

P2A83

Alternative Fuel Pump B Compression Stroke Valve Control Circuit/Open

P2A83 is an OBD-II diagnostic trouble code meaning: Alternative Fuel Pump B Compression Stroke Valve Control Circuit/Open. Common causes: open or short circuit in wiring harness, fuel pump solenoid valve malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Unstable engine operation
  • Reduced engine power
  • Increased fuel consumption
  • Problems starting the engine

Causes

  • Open or short circuit in wiring harness
  • Fuel pump solenoid valve malfunction
  • Poor contact in connectors
  • Engine control unit malfunction
  • Mechanical damage to the fuel pump

How to Fix

  1. Check the integrity of the wiring harness to the valve
  2. Check the resistance and operation of the solenoid valve
  3. Inspect and clean electrical contacts
  4. Check the power and ground of the control circuit
  5. If necessary, replace the fuel pump or valve

Related codes

Error P2A83 by Vehicle Brand

FAQ

What does the P2A83 code mean?

P2A83 is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Pump B Compression Stroke Valve Control Circuit/Open

What causes a P2A83 error code?

The most common causes of P2A83 include: Open or short circuit in wiring harness; Fuel pump solenoid valve malfunction; Poor contact in connectors; Engine control unit malfunction.

How do I fix a P2A83 diagnostic trouble code?

To fix P2A83: Check the integrity of the wiring harness to the valve. Check the resistance and operation of the solenoid valve. Inspect and clean electrical contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2A83?

Yes, but get it checked soon

How much does it cost to fix P2A83?

The estimated repair cost for P2A83 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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