P2147

Fuel Injector Group A Supply Voltage Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$6–56 (est.)

Symptoms

Unstable engine operation
Power reduction
Increased fuel consumption
Engine stalls at idle
Check Engine light comes on

Causes

Open or short circuit in the injector circuit
Faulty injector relay
Poor contact in connectors
Engine control unit (ECU) malfunction
Damaged wiring harness

How to Fix

Check the continuity of the injector circuit of group A
Check relays and fuses
Inspect connectors and contacts for corrosion or damage
Check the operation of the engine control unit
Replace damaged components if necessary

Related codes

P2146 P2148 P2149