AutoCodes – Generic – P104A

P104A Code - Cylinder 3 Oil Supply Solenoid Valve Overcurrent

Quick Answer

Multi-Air is an electronically controlled variable intake valve phase and lift system. Common causes include Faulty Variable Valve Actuator (VVA) Solenoid, Variable Valve Actuator Solenoid harness is open or shorted, Variable Valve Actuator Solenoid 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: P104A indicates Cylinder 3 Oil Supply Solenoid Valve Overcurrent.
Common causes: Common causes include Faulty Variable Valve Actuator (VVA) Solenoid, Variable Valve Actuator Solenoid harness is open or shorted, Variable Valve Actuator Solenoid 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.

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Code Popularity 1,778

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P104A Description

Multi-Air is an electronically controlled variable intake valve phase and lift system. Unlike conventional intake valve phase and lift system which controls all the cylinder intake valves simultaneously and in the same proportion; Multi-Air, through the use of an electronically controlled hydraulic link between the camshaft and intake valve, allows for each intake valve to be controlled independently. The valve lift and timing can be adjusted infinitely.
The Multi-Air valve train has a mechanical camshaft lobe acting on a hydraulic pump located between the camshaft intake lobe and the intake valve. The pump provides oil under pressure to a two-way electro-hydraulic solenoid valve called the Variable Valve Actuator (VVA) Solenoid. The VVA Solenoid is electronically controlled during the specific intake cam lobe event by the Powertrain Control Module (PCM). During the event, the VVA Solenoid is commanded to either hold oil pressure or bleed oil. The Variable Valve Actuator (VVA) Solenoid is a normally open solenoid. The PCM provides 12 volts to close the solenoid. The position of the VVA Solenoid determines the intake valve timing and lift. This change on valve action is similar to creating a change in the camshaft lobe profile affecting the lift and duration of the valve opening. The Diagnostic Trouble Code (DTC) will be set when the Variable Valve Actuator (VVA) solenoid current feedback level in voltage is out of range.

OBDII Code P104A - Cylinder 3 Oil Supply Solenoid Valve Overcurrent - AutoCodes.com — P104A Code - Cylinder 3 Oil Supply Solenoid Valve Overcurrent

What does this mean?

What are the Possible Causes of the DTC P104A?

Faulty Variable Valve Actuator (VVA) Solenoid
Variable Valve Actuator Solenoid harness is open or shorted
Variable Valve Actuator Solenoid circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P104A?

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 P104A 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 P104A code?

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Need Help with the Code?

Get the P104A code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P104A Chrysler — Cylinder 3 Oil Supply Solenoid Valve Overcurrent
P104A Dodge — Cylinder 3 Oil Supply Solenoid Valve Overcurrent
P104A Fiat — Cylinder 3 Oil Supply Solenoid Valve Overcurrent
P104A Jeep — Cylinder 3 Oil Supply Solenoid Valve Overcurrent

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 P104A Code

1. What are the common symptoms of OBDII code P104A (Cylinder 3 Oil Supply Solenoid Valve Overcurrent)?

The common symptoms of this code may include poor engine performance, rough idling, reduced fuel efficiency, and potential stalling.

2. What causes the OBDII code P104A to appear?

This code usually indicates that there is an overcurrent condition in the Cylinder 3 Oil Supply Solenoid Valve, which could be caused by electrical issues, a faulty solenoid valve, or a short circuit.

3. How can I diagnose the Cylinder 3 Oil Supply Solenoid Valve Overcurrent issue?

Diagnosing this problem typically involves checking the wiring harness for damage, testing the solenoid valve for proper functioning, and inspecting the electrical connections for any issues.

4. Can I still drive my vehicle with the P104A trouble code present?

It is not recommended to drive your vehicle with this code active, as it can lead to further engine damage and potential safety hazards. It is best to address the issue promptly.

5. How serious is the Cylinder 3 Oil Supply Solenoid Valve Overcurrent problem?

While the severity can vary, ignoring this issue can lead to engine performance issues, increased fuel consumption, and potential engine damage if left unresolved for an extended period.

6. How do I repair the Cylinder 3 Oil Supply Solenoid Valve Overcurrent issue?

Repairing this problem may involve replacing the faulty solenoid valve, repairing any damaged wiring or connectors, and clearing the trouble code with an OBDII scanner.

7. Can I reset the OBDII code P104A without fixing the underlying issue?

Resetting the code without addressing the root cause will only temporarily clear the check engine light. The problem will likely resurface if the underlying issue is not fixed.

8. How much does it typically cost to repair the Cylinder 3 Oil Supply Solenoid Valve Overcurrent problem?

The cost of repair can vary depending on the extent of the issue, the labor rates of the mechanic, and the price of parts. It's best to consult a professional for an accurate estimate.

9. Is it possible to prevent the OBDII code P104A from occurring in the future?

Regular maintenance, such as checking and replacing worn-out components, inspecting electrical connections, and addressing any engine performance issues promptly, can help prevent this code from reoccurring.

10. Can a DIY enthusiast fix the Cylinder 3 Oil Supply Solenoid Valve Overcurrent issue at home?

While some DIY enthusiasts may have the skills and tools to address this problem, it is recommended to consult a professional mechanic for proper diagnosis and repair to ensure the issue is resolved correctly.