P2DD6

Fuel Injection Quantity B Higher Than Expected

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Increased fuel consumption
Uneven engine operation
Power Loss
Black smoke from the exhaust pipe
Check Engine Light Illuminates

Causes

Malfunction of fuel injectors in circuit B
Problems with the fuel pump or pressure regulator
Dirty or clogged fuel system
Malfunction of sensors (mass air flow sensor, oxygen sensor)
Problems with wiring or connections

How to Fix

Check the condition of the fuel injectors in circuit B
Diagnose the operation of the fuel pump and pressure regulator
Check the condition of the fuel filter
Test the operation of the relevant sensors
Check the integrity of electrical wiring and connections

Related codes

P2DD5 P2DD7 P0172