What are the common causes of P2DE2?

Cold start injector D clogged. Low fuel pressure at cold start. A faulty cold start quantity sensor. Deposit buildup in cold start injector D. A faulty cold start injector driver.

Read cold start fuel injection quantity D on a scan tool. Check the cold start fuel pressure. Test cold start injector D. Clean or replace cold start injector D. Verify the cold start injector timing. Clear the code and retest.

P2DE2

Cold Start Fuel Injection Quantity D Lower Than Expected

System: Powertrain control (P code)
Lamp: Check Engine Light
Category: Powertrain - Fuel/Air Metering

What it means

P2DE2 means Cold Start Fuel Injection Quantity D Lower Than Expected.

Check these first

Cold start injector D clogged
Low fuel pressure at cold start
A faulty cold start quantity sensor
Deposit buildup in cold start injector D
A faulty cold start injector driver

What to do next

Read cold start fuel injection quantity D on a scan tool
Check the cold start fuel pressure
Test cold start injector D
Clean or replace cold start injector D
Verify the cold start injector timing
Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.