OBD Guide

P2A98

Alternative Fuel Tank Select Valve B Control Circuit High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • The 'Check Engine' light is on
  • Problems with switching between fuel types
  • The car cannot use alternative fuel
  • Unstable engine operation when trying to use alternative fuel
  • Error persists after reset

Causes

  • Short circuit in valve control circuit
  • Fuel valve B malfunction
  • Problems with wiring or connectors
  • Engine control unit (ECU) malfunction
  • Corrosion of contacts in the control circuit

How to Fix

  1. Check the condition of the control circuit wiring and connectors
  2. Check the resistance of valve B (compare with the nameplate values)
  3. Check valve control circuit voltage
  4. Replace faulty valve B if necessary
  5. Repair or replace damaged wiring

Related codes

Error P2A98 by Vehicle Brand