P2DE3

Cold Start Fuel Injection Quantity D Higher Than Expected

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Increased fuel consumption
Unstable engine operation when cold
Black smoke from exhaust pipe during cold start
Difficulty starting a cold engine
Difficulties in engine idle speed

Causes

Faulty injectors (stuck open)
Increased pressure in the fuel rail
Coolant temperature sensor malfunction
Problems with the mass air flow sensor (MAF)
Incorrect ECU software

How to Fix

Check the operation of the fuel injectors
Diagnose pressure in the fuel system
Check the coolant temperature sensor readings
Test the mass air flow sensor for correct readings
Update ECU firmware if necessary

Related codes

P0172 P0175 P2187