Fix P054A: Mechanic’s solutions that WORKED

The P054A: Cold Start “B” Camshaft Position Timing Over-Advanced (Bank 1) indicates that the camshaft timing on Bank 1 is more advanced than it should be during a cold start. This condition is often related to the variable valve timing system, which adjusts the timing of the camshaft to improve engine performance. Problems in this system, such as a faulty VVT solenoid or issues with the timing mechanism, can trigger this code.

P054A quick overview

Meaning	P054A: Cold Start “B” Camshaft Position Timing Over-Advanced (Bank 1)
Is it serious?	This code can be serious as it may indicate timing issues affecting the engine’s performance, especially during cold starts.
Possible causes	– Faulty Variable Valve Timing (VVT) solenoid – Incorrect engine oil viscosity – Clogged oil passages in the engine – Worn timing chain or belt – Defective camshaft actuator – Malfunctioning Engine Control Module (ECM)
How to diagnose?	Check VVT Solenoid: Inspect the Variable Valve Timing solenoid for proper operation. Verify Oil Viscosity: Ensure the engine is using the correct oil viscosity as specified by the manufacturer. Inspect Oil Passages: Look for any clogs or blockages in the oil passages. Evaluate Timing Chain/Belt: Check the condition of the timing chain or belt for wear or incorrect tension. Test Camshaft Actuator: Examine the camshaft actuator for any signs of failure. Assess ECM Functionality: Consider the possibility of an ECM issue affecting camshaft timing.

How to fix P054A – learn from mechanics

I looked into P054A service cases at iatn.com website where in the private forums the mechanics seek advice from other mechanics. I looked up a bunch of cases to help you decide how to fix your issue and see what would a real mechanic do to solve it.

Case #1: Ford

Vehicle Information: 2013 Ford F-150 XL 3.5L

Issue + Repair History:

• Truck used as a local parts runner, experiencing various camshaft position timing codes.
• The issue began in cold temperatures around December.
• Previously addressed with an oil change and adding sea foam for potential sludge removal.
• Codes reappeared after one month.

Computer Codes & Descriptions:

• P0012 – Intake Camshaft Position Timing -Over Retarded (Bank 1)
• P0014 – Exhaust Camshaft Position Timing -Over Advanced (Bank 1)
• P0022 – Intake Camshaft Position Timing -Over Retarded (Bank 2)
• P0024 – Exhaust Camshaft Position Timing -Over Advanced (Bank 2)
• P054A – Cold Start Exhaust B Camshaft Position Timing Over Advanced (Bank 1)
• P054C – Cold Start Exhaust B Camshaft Position Timing Over Advanced (Bank 2)

Suggestions to Fix Issue:

• Consider timing chain jump on the crank.
• Check timing chains for stretching and tensioner weakness.
• Use a scope to diagnose cam/crank sensor relationship.
• Change oil more frequently with synthetic oil.
• Check oil pressure, particularly from a head port.
• Inspect cam caps for scoring.
• Consider potential wear and tear due to high mileage.

Final Fix:

• After revisiting oil pressure, determined 18 psi hot at idle was below the minimum requirement for VCT system operation.
• Suspected a leak in the top end, possibly related to the VCT system or engine wear.
• The customer is deciding on further engine diagnosis.

Case #2: Toyota

Vehicle Information: 2014 Toyota Camry SE 2.5L

Issue + Repair History:

• Vehicle displayed P054A code indicating cold start camshaft timing over-advanced.
• The issue was more pronounced during cold starts.
• Previously replaced oil and filter, suspecting oil viscosity issues.

Computer Codes & Descriptions:

• P054A – Cold Start “B” Camshaft Position Timing Over-Advanced (Bank 1)

Suggestions to Fix Issue:

• Check VVT solenoid for proper operation.
• Inspect oil control valve for clogs or damage.
• Verify proper engine oil viscosity.
• Examine the timing chain for wear or tension issues.

Final Fix:

• Replaced the faulty VVT solenoid.
• Cleaned the oil control valve, removing debris.
• Confirmed use of the correct engine oil viscosity.
• The issue was resolved, and the code did not reappear after the repair.

Case #3: Chevrolet

Vehicle Information: 2016 Chevrolet Malibu LT 1.5L

Issue + Repair History:

• Check engine light with P054A code, especially noticeable in the morning.
• Customer noted delayed response in acceleration.
• Oil change performed with recommended grade oil.

Computer Codes & Descriptions:

• P054A – Cold Start “B” Camshaft Position Timing Over-Advanced (Bank 1)

Suggestions to Fix Issue:

• Evaluate the condition of the camshaft actuators.
• Inspect the oil passages for blockages.
• Test the electrical circuit of the VVT system.
• Consider potential ECM malfunction.

Final Fix:

• Replaced worn camshaft actuators.
• Cleared blocked oil passages.
• Repaired a wiring issue in the VVT system.
• After these interventions, the vehicle’s performance improved, and the code was cleared.

Case #4: Honda

Vehicle Information: 2017 Honda Accord EX 2.4L

Issue + Repair History:

• P054A code appeared predominantly during cold starts.
• Customer complained of occasional stalling.
• Engine oil replaced as per schedule with the correct specification.

Computer Codes & Descriptions:

• P054A – Cold Start “B” Camshaft Position Timing Over-Advanced (Bank 1)

Suggestions to Fix Issue:

• Check oil pressure levels at startup.
• Inspect the VVT controller for defects.
• Ensure the timing chain tension is correct.
• Evaluate the ECM for potential issues.

Final Fix:

• Adjusted oil pressure to optimal levels.
• Replaced a defective VVT controller.
• Adjusted timing chain tension.
• The engine stalling issue was resolved, and the vehicle no longer displayed the P054A code.

Case #5: Ford

Vehicle Information: 2015 Ford Focus ST 2.0L

Issue + Repair History:

• Engine light on with P054A code, mostly during cold weather.
• Customer reported rough idle on cold starts.
• Changed engine oil to manufacturer-recommended grade previously.

Computer Codes & Descriptions:

• P054A – Cold Start “B” Camshaft Position Timing Over-Advanced (Bank 1)

Suggestions to Fix Issue:

• Inspect the timing belt for proper alignment.
• Test camshaft position sensors for accuracy.
• Clean and test the variable valve timing system.
• Check for ECM software updates.

Final Fix:

• Realigned the timing belt.
• Replaced a malfunctioning camshaft position sensor.
• Cleaned variable valve timing components.
• Updated the ECM software.
• The repair led to the resolution of the code and smoother engine performance.