P16CF Code - Intake Rocker Arm Solenoid Valve 2 Control Circuit
Quick Answer
The rocker arm actuator system enables the Engine Control Module (ECM) to change the camshaft lift and duration while the engine is operating. Common causes include Faulty Intake Rocker Arm Solenoid Valve 2, Intake Rocker Arm Solenoid Valve 2 harness is open or shorted, Intake Rocker Arm Solenoid Valve 2 circuit poor electrical connection. 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
- P16CF indicates Intake Rocker Arm Solenoid Valve 2 Control Circuit.
- Common causes
- Common causes include Faulty Intake Rocker Arm Solenoid Valve 2, Intake Rocker Arm Solenoid Valve 2 harness is open or shorted, Intake Rocker Arm Solenoid Valve 2 circuit poor electrical connection.
- 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 P16CF Description
The rocker arm solenoid valve receives a signal from the ECM. The ECM controls the rocker arm solenoid valve by supplying a 12 V PWM signal. The ECM supplies a ground to the low reference circuit.
What are the Possible Causes of the DTC P16CF?
- Faulty Intake Rocker Arm Solenoid Valve 2
- Intake Rocker Arm Solenoid Valve 2 harness is open or shorted
- Intake Rocker Arm Solenoid Valve 2 circuit poor electrical connection
How to Fix the DTC P16CF?
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 P16CF 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.
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Information for Specific Makes
- P16CF Buick — Intake Rocker Arm Solenoid Valve 2 Control Circuit
- P16CF Cadillac — Intake Rocker Arm Solenoid Valve 2 Control Circuit
- P16CF Chevrolet — Intake Rocker Arm Solenoid Valve 2 Control Circuit
- P16CF GMC — Intake Rocker Arm Solenoid Valve 2 Control Circuit
Frequently Asked Questions about P16CF Code
1. What does the OBDII code P16CF mean?
P16CF refers to a fault in the Intake Rocker Arm Solenoid Valve 2 control circuit, indicating an electrical or mechanical issue with the solenoid responsible for controlling valve timing.
2. What are the common symptoms of the P16CF code?
Symptoms may include poor engine performance, rough idling, reduced fuel efficiency, hesitation during acceleration, or the Check Engine Light being illuminated.
3. What causes the P16CF code to trigger?
Common causes include a faulty intake rocker arm solenoid valve, damaged wiring or connectors in the solenoid circuit, low oil pressure, or contaminated engine oil.
4. How can I diagnose the P16CF code?
Start by checking the intake rocker arm solenoid valve and its wiring for damage, test the solenoid's resistance using a multimeter, and ensure the engine has proper oil pressure and clean oil.
5. Can I drive with the P16CF code active?
Driving with this code is not recommended as it may lead to engine performance issues and potentially cause further damage if left unresolved.
6. How do I fix the P16CF code?
Repairs may involve replacing a faulty intake rocker arm solenoid valve, repairing damaged wiring or connectors, or addressing oil-related issues like low pressure or dirty oil.
7. Does low oil pressure affect the P16CF code?
Yes, low oil pressure can cause the solenoid valve to malfunction, triggering the P16CF code. Check your oil level and pressure as part of your diagnostics.
8. What tools are needed to repair the P16CF code?
You may need an OBDII scanner, a multimeter for electrical testing, basic hand tools, and possibly an oil pressure gauge to confirm proper oil flow.
9. How much does it cost to fix the P16CF code?
The cost depends on the cause. Replacing the solenoid valve can range from $100 to $300, while wiring repairs or an oil change may be less expensive.
10. Can a dirty intake rocker arm solenoid valve cause the P16CF code?
Yes, a clogged or dirty solenoid valve can impair its function, leading to the P16CF code. Cleaning or replacing the solenoid may resolve the issue.
Discuss the causes and fixes for P16CF OBDII Code
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My 2015 Chevy Malibu lt just threw this code P16CF the best price I’ve found is car id https://www.carid.com/dorma...
I’ll let you know how it turns out, also there’s a video on YouTube showing the wrong fix for this code so beware
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There is currently a recall for this issue, just rx'd a notice for GM on my 2014 Malibu 2.5 LT2.
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