Quick Answer
P0660 means: P0660 indicates a malfunction in the intake manifold tuning valve control circuit.
Can I drive with P0660? Immediate attention is recommended to prevent further engine damage.
Common Questions
What does P0660 mean and how does it affect my car?
The P0660 code indicates a malfunction in the intake manifold tuning valve control circuit, which can lead to poor engine performance, reduced fuel efficiency, and increased emissions. If left unresolved, it can cause further engine issues, making it essential to address the problem as soon as possible.
What are the most common causes of P0660 and how much does it cost to fix?
Common causes of the P0660 code include a faulty intake manifold tuning valve, damaged wiring, or a malfunctioning ECM. Repair costs can range from $100 for minor wiring repairs to $800 for ECM replacement, depending on the extent of the issue.
Can I drive my car with P0660 or should I stop immediately?
While it may be possible to drive your vehicle for a short time, it is not advisable. Ignoring the P0660 code can lead to more severe engine damage and safety risks. It is best to have your vehicle inspected and repaired as soon as possible.
How can I diagnose P0660 myself using GeekOBD APP?
To diagnose P0660 with GeekOBD APP, start by connecting the app to your vehicle's OBD2 port. Run a full system scan to retrieve the code and any related trouble codes. You can also check live data to monitor the intake manifold tuning valve's performance and any voltage readings.
What vehicles are most commonly affected by P0660?
The P0660 code frequently affects vehicles such as the 2015-2018 Ford Mustang, 2016 Chevrolet Malibu, and 2014 Honda Accord. It's advisable to check for any recalls or technical service bulletins (TSBs) related to this code for your specific vehicle.
How can I prevent P0660 from happening again?
To prevent the recurrence of P0660, ensure regular maintenance of your vehicle, including inspections of the intake manifold and electrical connections. Keeping the engine clean and addressing any warning lights promptly can also help avoid future issues.
What is P0660?
The P0660 diagnostic trouble code (DTC) signifies an issue with the intake manifold tuning valve control circuit. This code is commonly found in various makes and models, particularly affecting vehicles like the 2015-2018 Ford Mustang, 2016 Chevrolet Malibu, and 2014 Honda Accord. The intake manifold tuning valve is responsible for optimizing airflow into the engine, enhancing fuel efficiency and power output. When this component malfunctions, or if there is a disruption in the electrical circuit that controls it, the engine control module (ECM) detects the fault and triggers the P0660 code. As a result, car owners may experience reduced engine performance, increased emissions, and potential engine stalling. Ignoring this code can lead to more severe issues like engine overheating or failure, making it crucial to address the problem promptly. Drivers may notice changes in engine noise or performance, especially during acceleration, which can indicate that the tuning valve is not functioning correctly. Therefore, understanding and diagnosing this code is vital for maintaining your vehicle’s health and performance.
System: P - Powertrain (Engine, Transmission, Emissions)
Symptoms
Common symptoms when P0660 is present:
- The check engine light illuminates, indicating a fault that needs attention, often remaining lit until the issue is resolved.
- You may experience engine hesitation during acceleration, where the vehicle feels sluggish and unresponsive as it struggles to get up to speed.
- Fuel economy might decrease significantly, with reports of reduced mileage by about 10-15%, leading to more frequent trips to the gas station.
- Unusual engine noises may occur, particularly a rattling or knocking sound at higher RPMs, suggesting that the tuning valve is not operating correctly.
- In severe cases, the engine may stall unexpectedly, especially when idling or during low-speed driving, posing a safety risk.
Possible Causes
Most common causes of P0660 (ordered by frequency):
- The most common cause of the P0660 code is a faulty intake manifold tuning valve, which has a likelihood of about 60%. This can happen due to wear and tear over time or exposure to contaminants.
- Another frequent cause is damaged wiring or connectors in the control circuit, often leading to electrical shorts. This issue has about a 25% likelihood and can be exacerbated by corrosion.
- A third potential cause is a malfunctioning engine control module (ECM), which can mistakenly interpret signals or fail to send commands. This has about a 10% likelihood and can often be prevented by regular vehicle maintenance.
- Less commonly, a vacuum leak in the intake system can lead to incorrect readings, resulting in the P0660 code being triggered. It is crucial to inspect for leaks during diagnostics.
- Rarely, software glitches in the vehicle’s onboard computer systems can cause the code to appear without any physical issues. This might require a software update to resolve.
P0660 Repair Costs
Cost Breakdown by Repair Type
Intake Manifold Tuning Valve Replacement
Replacing the faulty tuning valve can restore normal function and performance.
- Total: $150 - $400
- Success rate: 85%
Wiring and Connector Repair
Fixing damaged wiring or connectors to ensure proper electrical function.
- Total: $100 - $250
- Success rate: 90%
ECM Replacement or Reprogramming
In cases where the ECM is faulty, replacing or reprogramming can resolve the issue.
- Total: $200 - $800
- Success rate: 80%
Money-Saving Tips for P0660
- Start with the most common and least expensive repairs first
- Use GeekOBD APP to confirm diagnosis before replacing expensive parts
- Consider preventive maintenance to avoid future occurrences
- Compare prices for OEM vs aftermarket parts based on your needs
- Address the issue promptly to prevent more expensive secondary damage
Diagnostic Steps
Professional P0660 Diagnosis Process
Follow these systematic steps to accurately diagnose P0660. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Conduct an initial visual inspection
Step 1: Conduct an initial visual inspection. Check for any damaged wiring, loose connections, or corrosion around the intake manifold and related components (5-10 minutes).
Step 2: Step 2: Use the GeekOBD APP to perform an OBD2 scan
Step 2: Use the GeekOBD APP to perform an OBD2 scan. Retrieve all stored codes alongside the freeze frame data to understand the fault context and history (10-15 minutes).
Step 3: Step 3: Perform component testing with a multimeter, checking the voltage and resistance of the tuning valve and related circuits to determine functionality (20-30 minutes)
Step 3: Perform component testing with a multimeter, checking the voltage and resistance of the tuning valve and related circuits to determine functionality (20-30 minutes).
Step 4: Step 4: After repairs or replacements, conduct a system function test to verify proper operation and clear the codes using the GeekOBD APP (10-15 minutes)
Step 4: After repairs or replacements, conduct a system function test to verify proper operation and clear the codes using the GeekOBD APP (10-15 minutes).
Step 5: Step 5: Finally, take the vehicle for a road test under various driving conditions to confirm the repair success and ensure the engine operates smoothly (15-20 minutes)
Step 5: Finally, take the vehicle for a road test under various driving conditions to confirm the repair success and ensure the engine operates smoothly (15-20 minutes).
Important Notes
- Always verify the repair with GeekOBD APP after completing diagnostic steps
- Clear codes and test drive to ensure the problem is resolved
- Address underlying causes to prevent code recurrence
Real Repair Case Studies
Case Study 1: Intake Manifold Tuning Valve Replacement on 2017 Ford Mustang
Vehicle: 2017 Ford Mustang, 45,000 miles
Problem: Customer reported a check engine light and reduced engine performance.
Diagnosis: After scanning with GeekOBD APP, code P0660 was identified. Visual inspection revealed a damaged tuning valve.
Solution: Replaced the intake manifold tuning valve and cleared the code.
Cost: $350 (including parts and labor)
Result: The vehicle performed well after the repair, with no further issues.
Case Study 2: Wiring Repair on 2016 Chevrolet Malibu
Vehicle: 2016 Chevrolet Malibu, 60,000 miles
Problem: Customer experienced engine hesitation and the check engine light was on.
Diagnosis: Diagnostic testing revealed P0660 due to damaged wiring in the control circuit.
Solution: Repaired the wiring and secured all connections.
Cost: $150 (for parts and labor)
Result: The hesitation was resolved, and the check engine light remained off.