P016D

Excessive Time To Enter Closed Loop Fuel Pressure Control

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Increased fuel consumption
Unstable engine idling
Deterioration of dynamic characteristics
CHECK ENGINE lamp lights up

Causes

Oxygen sensor malfunction
Problems with the fuel pump or pressure regulator
Dirty or worn fuel injectors
Leak in the fuel supply system
Problems with the wiring harness to the oxygen sensor
Engine ECU malfunction (rare)

How to Fix

Diagnostics of the state of the oxygen sensor (lambda probe)
Checking the fuel system pressure
Inspect fuel injectors for contamination
Checking the integrity of fuel lines for leaks
Diagnostics of the oxygen sensor circuit (resistance, wires)
Resetting the error and re-diagnosis

Related codes

P0171 P0172 P0174 P0175