P2D1A

Exhaust Flow Control Valve C Position Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Deterioration in acceleration dynamics
Increased fuel consumption
Unstable operation at idle

Causes

Exhaust gas flow control valve malfunction
Open or short circuit in control circuit
Poor contact in circuit connectors
Engine control unit (ECU) malfunction
Corroded or damaged wires

How to Fix

Check the condition of the exhaust gas flow control valve
Check the integrity of the control circuit and connectors
Measure resistance and voltage in the circuit
Check the operation of the engine control unit
Replace faulty components

Related codes

P2D19 P2D1B P2D1C