P2A70

Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit

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

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
Inspect the wiring harness for damage
If necessary, replace the valve or repair the wiring

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