What Does P054D Mean?
The ECM has detected that the exhaust (Bank 2) camshaft position is excessively retarded beyond the expected range during cold start conditions. This is the Bank 2 equivalent of P054B. The VVT system cannot advance the Bank 2 exhaust camshaft to its cold-start target position, typically due to insufficient oil pressure, a restricted oil control valve, or a worn phaser on the Bank 2 side.
Common Causes
35%
Clogged Bank 2 exhaust camshaft oil control valve screen preventing adequate oil delivery to advance the phaser
25%
Low oil pressure during cold cranking due to worn oil pump gears, clogged pickup screen, or low oil level
25%
Worn Bank 2 exhaust VVT phaser with internal oil leakage preventing commanded advance
15%
Sludge-blocked oil galleries in the Bank 2 cylinder head feeding the exhaust VVT actuator
Diagnostic Steps
1
Step 1: Confirm engine oil is at the correct level and of the proper viscosity grade. Inspect oil for sludge or discoloration. Change oil and filter if service is overdue.
2
Step 2: Perform a cold start while monitoring Bank 2 exhaust camshaft actual vs. commanded position. An over-retarded reading (more than 5 degrees behind target) during the first 60 seconds confirms the condition.
3
Step 3: Compare Bank 2 exhaust cam performance to Bank 1 during cold start. If Bank 1 meets targets normally, the issue is isolated to Bank 2 oil supply or components.
4
Step 4: Remove and inspect the Bank 2 exhaust OCV for sludge buildup on the filter screen. Test solenoid electrically and mechanically. A sticking plunger or clogged screen is a common finding.
5
Step 5: If the OCV tests good and oil pressure is within specification, the Bank 2 exhaust VVT phaser has internal leakage and should be replaced. Inspect timing chain, tensioner, and guides during the repair.
Estimated Repair Cost
$150 - $1,400
Parts + labor, varies by vehicle and location
The ECM has detected that the exhaust (Bank 2) camshaft position is excessively retarded beyond the expected range during cold start conditions. This is the Bank 2 equivalent of P054B. The VVT system cannot advance the Bank 2 exhaust camshaft to its cold-start target position, typically due to insuf...
The most common cause of P054D (Cold Start "B" Camshaft Position Timing Over-Retarded Bank 2) is: Clogged Bank 2 exhaust camshaft oil control valve screen preventing adequate oil delivery to advance the phaser
Typical repair costs for P054D range from $150 to $1,400, depending on the vehicle, location, and whether you do it yourself or go to a shop.
An over-retarded Bank 2 exhaust camshaft during cold start results in rough idle, increased emissions, and potential stalling. Cold-weather stalling risk may compromise driver safety in traffic situations.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P054D to identify the root cause.
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Quick Info
Category
Powertrain
System
Variable Valve Timing (VVT) System
Difficulty
Type
Generic (SAE)
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