OBD Guide

P2A93

Alternative Fuel Tank Select Valve A Control Circuit Low

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

Symptoms

  • Switching to the main fuel type
  • Reduced engine power
  • Check Engine light comes on
  • Starting problems on alternative fuel

Causes

  • Open or short circuit in control circuit
  • Fuel select valve malfunction
  • Relay or fuse problems
  • Engine control unit malfunction
  • Poor contact in connectors

How to Fix

  1. Check fuses and relays associated with the system
  2. Check valve control circuit integrity
  3. Check valve resistance and operation
  4. Check connectors and connections for corrosion
  5. If necessary, replace the fuel selector valve

Related codes

Error P2A93 by Vehicle Brand