AutoCodesGMC – P01D3 GMC

P01D3 GMC Code - Cylinder 5 Injection Timing Retarded

Quick Answer

The Engine Control Module (ECM) has the ability to learn injector timing performance. Common causes include Fuel Type Incorrect, Fuel Contaminated/Poor Quality, Faulty Fuel Injector 1. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P01D3 GMC indicates Cylinder 5 Injection Timing Retarded.
Common causes
Common causes include Fuel Type Incorrect, Fuel Contaminated/Poor Quality, Faulty Fuel Injector 1.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 498
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 22, 2024
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Code P01D3 GMC Description

The Engine Control Module (ECM) has the ability to learn injector timing performance. When the engine is at operating temperature, throttle closed and in deceleration fuel cut-off mode, the ECM will pulse each injector individually and measure the changes in rotational speed of the crankshaft using the input from the crankshaft position sensor. The ECM will run this diagnostic at one fuel rail pressure operating point for each injector. The ECM stores the injector timing value. The Diagnostic Trouble Code (DTC) will be set when the Fuel Injection Timing is out of range.
OBDII Code P01D3 GMC - Cylinder 5 Injection Timing Retarded - AutoCodes.com
P01D3 GMC Code - Cylinder 5 Injection Timing Retarded

What are the Possible Causes of the DTC P01D3 GMC?

  • Fuel Type Incorrect
  • Fuel Contaminated/Poor Quality
  • Faulty Fuel Injector 1
  • Fuel Injector 1 harness is open or shorted
  • Fuel Injector 1 circuit poor electrical connection
  • Engine Mechanical Problem

How to Fix the DTC P01D3 GMC?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P01D3 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P01D3 GMC code?

Need more information on how to fix the P01D3 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P01D3 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P01D3 GMC Code

1. What does the OBDII code P01D3 mean on a GMC vehicle?

P01D3 indicates that the Engine Control Module (ECM) has detected that the injection timing for cylinder 5 is retarded or delayed beyond its specified range.

2. What are the common symptoms of code P01D3 in a GMC?

Symptoms may include rough idling, reduced engine performance, poor fuel economy, difficulty starting, and possible misfire in cylinder 5.

3. What are the possible causes of P01D3 on a GMC vehicle?

Causes may include a faulty fuel injector, damaged injector wiring or connector, low fuel pressure, timing issues, or a malfunctioning ECM.

4. Can you drive a GMC with the P01D3 code?

It’s not recommended to drive for extended periods with this code active, as it may lead to engine damage or reduced performance.

5. How do you diagnose the P01D3 code on a GMC?

Start by inspecting the fuel injector and wiring for cylinder 5, checking for loose connectors, testing the injector with a multimeter, and verifying proper fuel pressure.

6. What repairs are commonly needed to fix code P01D3 on a GMC?

Repairs may include replacing the fuel injector for cylinder 5, repairing or replacing damaged wiring, cleaning carbon buildup, or reprogramming/updating the ECM.

7. Can a clogged fuel injector cause the P01D3 code?

Yes, a clogged or dirty fuel injector can disrupt the injection timing, leading to the P01D3 code.

8. How much does it cost to repair the P01D3 code on a GMC?

Repair costs vary depending on the issue but typically range from $150 to $500, including parts and labor.

9. Can low fuel pressure trigger the P01D3 code?

Yes, insufficient fuel pressure can affect injector performance and timing, potentially causing this code.

10. Will clearing the P01D3 code fix the issue?

Clearing the code will temporarily remove it, but the underlying issue must be resolved to prevent the code from returning.

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