P2A85

Alternative Fuel Pump B Compression Stroke Valve Control Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Unstable engine operation
Reduced engine power
Increased fuel consumption
Difficulty starting the engine
Check Engine Light Is On

Causes

Open or short circuit in the injection pump valve control circuit
Faulty injection pump solenoid valve
Problems with the wiring harness or connectors
Malfunction of the engine control unit (ECU)
Problems with power or grounding of the circuit

How to Fix

Check the integrity of the injection pump valve control circuit
Check the resistance and operation of the solenoid valve
Inspect the wiring harness and connectors for damage.
Check circuit power and grounding
If necessary, replace faulty components

Related codes

P2A84 P2A86 P2A87