OBD Guide

P2A70

Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit

P2A70 is an OBD-II diagnostic trouble code meaning: Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit. Common causes: open or short circuit in valve control circuit, solenoid valve malfunction. Estimated repair cost: $17–89.

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

Symptoms

  • Check Engine light comes on
  • Problems with switching between fuel types
  • Reduced engine power
  • Unstable operation of the engine using alternative fuel
  • Car won't start on alternative fuel

Causes

  • Open or short circuit in valve control circuit
  • Solenoid valve malfunction
  • Problems with the relay or circuit fuse
  • Engine control unit malfunction
  • Wiring harness damage

How to Fix

  1. Check the integrity of fuses and relays
  2. Diagnose the control circuit for opens and short circuits
  3. Check the resistance and operation of the solenoid valve
  4. Inspect the wiring harness for damage
  5. If necessary, replace the valve or repair the wiring

Related codes

Error P2A70 by Vehicle Brand

FAQ

What does the P2A70 code mean?

P2A70 is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit

What causes a P2A70 error code?

The most common causes of P2A70 include: Open or short circuit in valve control circuit; Solenoid valve malfunction; Problems with the relay or circuit fuse; Engine control unit malfunction.

How do I fix a P2A70 diagnostic trouble code?

To fix P2A70: Check the integrity of fuses and relays. Diagnose the control circuit for opens and short circuits. Check the resistance and operation of the solenoid valve. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2A70?

Yes, but get it checked soon

How much does it cost to fix P2A70?

The estimated repair cost for P2A70 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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