P01D4 GMC Code - Cylinder 5 Injection Timing Advanced
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
- P01D4 GMC indicates Cylinder 5 Injection Timing Advanced.
- 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.
Code P01D4 GMC Description
What are the Possible Causes of the DTC P01D4 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 P01D4 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 P01D4 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 P01D4 GMC code?
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Information for Specific GMC Models
- P01D4 2014 GMC Sierra — Cylinder 5 Injection Timing Advanced
- P01D4 2015 GMC Sierra — Cylinder 5 Injection Timing Advanced
- P01D4 2016 GMC Sierra — Cylinder 5 Injection Timing Advanced
- P01D4 2017 GMC Sierra — Cylinder 5 Injection Timing Advanced
- P01D4 2018 GMC Sierra — Cylinder 5 Injection Timing Advanced
Frequently Asked Questions about P01D4 GMC Code
1. What does the OBDII code P01D4 mean for a GMC vehicle?
The code P01D4 indicates that the injection timing for cylinder 5 is advanced beyond the specified range.
2. What are the common symptoms of P01D4 on a GMC?
Symptoms may include rough idling, engine misfires, reduced fuel efficiency, poor acceleration, and the check engine light turning on.
3. What causes the P01D4 code to appear?
Common causes include a faulty fuel injector, issues with the camshaft position sensor, timing chain problems, or wiring/connectors related to the fuel injection system.
4. Can I drive my GMC with the P01D4 code active?
Driving with this code is not recommended as it can lead to engine performance issues and potential long-term damage.
5. How do I diagnose the P01D4 code in my GMC?
Start by scanning the vehicle with an OBDII tool, inspecting cylinder 5’s fuel injector, checking the camshaft position sensor, and examining wiring and connectors for damage.
6. How do I fix the P01D4 code on a GMC?
Repairs may involve replacing the faulty fuel injector, repairing damaged wiring, recalibrating the injection timing, or replacing the camshaft position sensor.
7. Can a dirty fuel injector cause the P01D4 code?
Yes, a clogged or malfunctioning fuel injector can disrupt the timing and trigger this code.
8. How much does it cost to repair the P01D4 code on a GMC?
Repair costs can vary but typically range from $150 to $500, depending on whether parts like fuel injectors or sensors need replacement.
9. Will clearing the P01D4 code solve the problem?
Clearing the code temporarily removes it, but the underlying issue must be resolved to prevent the code from returning.
10. Can a timing chain issue cause the P01D4 code on a GMC?
Yes, a worn or stretched timing chain can affect injection timing and lead to this code being triggered.
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