P0024
Fix within a few daysYour engine's computer detects that the exhaust camshaft on Bank 2 is not moving to the correct position or is stuck too far advanced.
Code P0024 means your exhaust camshaft on Bank 2 is not adjusting correctly. Common causes: VVT solenoid (70%), cam phaser (20%), low/dirty oil (5%). Drivability: Yes, for short trips only. Repair cost: $100-$400 DIY, $250-$1000 professional.
Can I Drive With P0024?
Yes, for short trips only
Essential trips under 10 miles, avoid highways and heavy loads. Prolonged driving can worsen engine performance and fuel economy.
Stop driving immediately if: Flashing CEL, loud engine noises, significant power loss, engine stalling, or burning smell.
Symptoms of P0024
- 1Reduced engine power or acceleration
- 2Rough idle or engine stalling
- 3Poor fuel economy
- 4Check Engine Light illuminated
- 5Engine may run louder or make ticking noises
Common Causes of P0024
Parts most likely causing this code, ranked by probability
This solenoid controls the oil flow that adjusts the camshaft's position; if it's clogged, stuck, or electrically faulty, the cam will not move as commanded.
70% of P0024 cases are fixed by replacing this part
This mechanical unit on the camshaft changes the timing and can fail internally due to wear, sludge, or a broken locking pin, preventing proper adjustment.
20% of P0024 cases are fixed by replacing this part
The VVT system relies on clean engine oil at the correct pressure to operate; low oil or sludge can restrict oil flow, preventing the cam phaser from adjusting.
5% of P0024 cases are fixed by addressing this issue
A damaged wire or a loose/corroded connector to the VVT solenoid can prevent it from receiving power or signals, causing it to malfunction.
3% of P0024 cases are fixed by repairing this
A rare internal fault in the ECM could send incorrect commands or misinterpret sensor readings, leading to this code.
2% of P0024 cases are fixed by replacing this part
Check These First (Before Buying Parts)
- Check your engine oil level and condition. Low or dirty oil is a common cause for VVT system malfunctions.
- Inspect the electrical connector and wiring going to the Bank 2 exhaust VVT solenoid for any visible damage, corrosion, or looseness.
How to Diagnose P0024
- 1Check engine oil level and condition. Ensure it is full and clean.
- 2Visually inspect the VVT solenoid's electrical connector and wiring for any damage, corrosion, or loose connections.
- 3Using a scan tool, monitor live data for the Bank 2 exhaust camshaft position and the commanded versus actual VVT solenoid duty cycle.
- 4Test the resistance of the Bank 2 exhaust VVT solenoid. Compare it to specifications or the Bank 1 solenoid if accessible and identical.
- 5If the solenoid tests good, consider removing and inspecting it for sludge or debris. You can also try swapping it with the Bank 1 exhaust solenoid (if identical) to see if the code moves.
- 6If the solenoid is confirmed good and the issue persists, the camshaft phaser itself is the likely culprit, requiring more involved diagnosis and replacement.
P0024 on Popular Vehicles
Toyota Camry
2007-2024Toyota's VVT-i systems are generally robust, but the oil control valves (OCVs) can get clogged with sludge, especially if oil changes are neglected. This is a common cause for P0024.
75% fixed by replacing the VVT Solenoid or changing oil
Honda Accord
2003-2024Honda's VTEC/VTC systems also rely on oil pressure. Similar to Toyota, dirty oil or a failing VTC oil control valve (spool valve) is a common culprit for P0024.
70% fixed by replacing the VVT Solenoid or changing oil
Ford F-150
2004-2024Especially 5.4L 3V engines, cam phaser issues are very common and often accompanied by ticking noises. The VVT solenoids (phaser actuators) can also fail. This can be a more involved repair.
60% fixed by replacing the Camshaft Phaser or VVT Solenoid
Frequently Asked Questions
What does P0024 mean?
P0024 indicates that your engine's computer has detected an issue with the exhaust camshaft timing on Bank 2, specifically that it is over-advanced or not performing as expected. Bank 2 is the side of the engine that does not contain cylinder #1.
Can I drive with P0024?
Yes, for short trips only. You can drive your vehicle for essential, short trips, but prolonged driving can worsen engine performance and fuel economy. Fix this within a few days to prevent potential engine damage.
Will P0024 clear itself?
No, P0024 will not clear itself. The underlying mechanical or electrical issue causing the incorrect camshaft timing must be repaired before the code will clear. Even if the Check Engine Light turns off temporarily, the problem is still present.
How do I fix P0024 myself?
Start by checking your engine oil level and condition. If the oil is low or dirty, change it. Next, inspect the wiring and connector to the Bank 2 exhaust VVT solenoid. If those are good, test the VVT solenoid's resistance or try swapping it with the Bank 1 solenoid (if identical) to see if the code moves. If the solenoid is good, the camshaft phaser is the next likely culprit.
How much does it cost to fix P0024?
DIY repair costs for P0024 typically range from $50 to $400, primarily for a new VVT solenoid or a camshaft phaser. Professional shop repairs can cost between $250 and $1200 or more, depending on whether it's a solenoid or a more involved phaser replacement.
P0024 keeps coming back - why?
P0024 keeps coming back because the root cause was not fully addressed. This often happens if only the VVT solenoid was replaced, but the actual problem was a clogged oil passage, a failing camshaft phaser, or persistent dirty engine oil. Thorough diagnosis is crucial to identify the correct failing component.
Will P0024 fail emissions/smog test?
Yes, P0024 will cause your vehicle to fail an emissions or smog test. The Check Engine Light being on automatically results in a failure, and incorrect valve timing directly impacts exhaust emissions.
What's the difference between P0024 and P0025?
P0024 indicates that the Bank 2 exhaust camshaft timing is 'over-advanced' or has a performance issue. P0025 indicates that the Bank 2 exhaust camshaft timing is 'over-retarded' or has a performance issue. Both codes point to a problem with the VVT system on the Bank 2 exhaust cam, but describe different timing conditions.
P0024 on Toyota Camry?
On Toyota Camry models, P0024 is often caused by a faulty or clogged exhaust oil control valve (OCV) on Bank 2, especially if oil changes have been neglected. Dirty engine oil can restrict the OCV's operation, leading to incorrect camshaft timing. Checking oil condition and the OCV is a common first step.
Questions to Ask Your Mechanic
Did you check the engine oil level and condition before diagnosing the VVT system?
Good answer: Yes, the first thing we did was confirm the oil level was full and the oil was clean. Dirty oil can directly cause VVT issues.
What were the live data readings for the Bank 2 exhaust camshaft position and VVT solenoid command?
Good answer: We saw that the commanded position for the Bank 2 exhaust cam was X degrees, but the actual position was Y degrees, indicating it was stuck or not responding. The solenoid duty cycle was Z% but the cam wasn't moving.
Did you test the resistance of the Bank 2 exhaust VVT solenoid, and did you inspect it for sludge?
Good answer: Yes, we tested the solenoid's resistance and it was within specification. We also removed it and found some minor sludge, but it appeared to be functioning mechanically when tested with power.
Repair Cost Estimate
DIY Repair
Parts only
$50-$400
Shop Repair
Parts + labor
$250-$1200
Save $200-$800+ by doing it yourself
Difficulty
intermediate
Time
1-4 hours
Intermediate. Replacing the VVT solenoid is often straightforward for someone with basic mechanical skills. However, diagnosing between the solenoid and the cam phaser, and then replacing the phaser, requires more advanced tools and experience.
Cost of Waiting
Ignoring P0024 can lead to reduced engine performance, poor fuel economy, and potentially more serious engine damage over time due to incorrect valve timing. Incorrect timing can also stress other engine components and, in severe cases, cause misfires that damage your catalytic converter ($800-$2,500 repair).
While You're In There...
If your oil is dirty or low, changing it is a critical first step and good maintenance that directly impacts VVT system function.
If the camshaft phaser needs replacement, the valve cover often needs to be removed, making it a good time to replace the gasket to prevent future oil leaks.
If you are replacing the Bank 2 solenoid and the Bank 1 solenoid is the same part and easily accessible, consider replacing both to prevent a future issue on the other bank, as they wear at similar rates.
Tools You'll Need
- Basic hand tools (sockets, wrenches)
- Multimeter (for testing solenoid resistance)
- OBD-II scan tool with live data capability
- Oil drain pan (if changing oil or removing solenoid)
- Torque wrench
- Screwdrivers
- Gasket scraper (if valve cover removal is needed)
P0024 is a common engine code related to your engine's variable valve timing system. While it affects performance, it's usually a fixable issue, and addressing it promptly will restore your engine's efficiency.
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Your Next Steps
Step 1: Check your engine oil. Ensure the oil level is full and the oil is clean. Dirty or low oil is a common cause for VVT issues.
Step 2: Inspect the VVT solenoid wiring. Look for any damaged, corroded, or loose connections at the Bank 2 exhaust VVT solenoid.
Step 3: Test the VVT solenoid. Use a multimeter to check the resistance of the solenoid. If it's out of specification, replace it. If it tests good, consider removing it to check for sludge or debris.