P0016 Engine Code | Camshaft and Crankshaft Not In Sync (2024)

Seeing any check engine light is distressing, but some causes are more worrisome than others. Among them is P0016, labeled as Camshaft Position A—Camshaft Position Correlation. At its simplest, this means the camshaft and crankshaft aren’t operating in sync with each other as they should. In more elaborate terms, code P0016 occurs when the engine control module (ECM) detects the timing between the camshaft and crankshaft is outside a preset margin. Specifically, the “A” refers to the intake camshaft on Bank 1.

On a scale of issue seriousness, a code P0016 is among the most cautionary warnings to receive. This is a “pull over (where it’s safe), turn off the engine, and call a tow truck” situation.

At best, code P0016 will cause reduced engine performance and increased emissions. At worst, this check engine light can forecast catastrophic engine failure. You should drive with code P0016 only as a last resort, understanding that every minute the car runs increases the risk of engine damage.

Whether you’re dealing with a P0016 issue now or are curious about what’s involved, keep reading for a dive into the details. This exploration will include possible causes, potential repair costs, and the most likely makes and models to experience this code.

Possible Causes of P0016 & Their Repair Costs

Diagnostic trouble code (DTC) P016 indicates that the engine crankshaft and Bank 1 camshaft are not rotating in sync.

The correct timing of the camshaft and crankshaft is essential for peak engine performance, fuel efficiency, and emissions control. The camshaft controls the opening and closing of the intake and exhaust valves. At the same time, the crankshaft converts the pistons’ up-and-down motion into rotational motion that’s fed into the transmission. A timing belt or chain synchronizes the rotation of the camshaft and crankshaft.

Check out the FIXD article on the most common causes of check engine lights.

The table below reveals that many things can cause P0016. With luck, an oil and filter change will solve the problem. More advanced DIYers can handle replacing a position sensor.

Because an automobile is a combination of many systems, and each system has many components, many problems can have more than one cause. Here’s a breakdown of what can trigger P0016 and why.

Makes Commonly Affected By P0016

Whether due to inadequate engineering, faulty manufacturing, or quirks of fate, some makes are more prone to P0016 troubles than others. FIXD sensor data from 2023 shows that Chevrolet is the most likely brand to have the P0016 code appear in its vehicles. Unsurprisingly, the automaker’s best-seller, the Silverado 1500, is at the top of the list. Chevy owners with an Equinox or Malibu are also more likely to see the same problem.

Chevy fans may be satisfied knowing Ford owners aren’t immune to the same issue. In particular, Ford’s top seller, the F-150, led the pack in P0016 incidents, according to FIXD data. However, unlike with Chevy, the second and third worst Fords for this issue, the Edge and Expedition, had far fewer P0016 occurrences than the Equinox and Malibu. In other words, second and third place isn’t as bad for Ford as Chevrolet.

Completing the code P0016 podium is Nissan, with the Altima having far more camshaft position correlation problems than another of the automaker’s models. The Titan and Pathfinder round out the three worst Nissans for P0016 problems. However, like with Ford, the frequency of this issue with this truck and SUV is far less than that of the first-place Altima.

Other Japanese brands aren’t immune. Code P0016 is prevalent among many of Toyota’s most popular models, the Camry, Corolla, and RAV4, albeit not at the level of the other brands. Interestingly, only the Pilot surfaced among Hondas as a more likely candidate for P0016 troubles.

“We only show the top models for the top 5 makes in this article. To see the rest, click on our article about how common P0016 is for all of the top 100 vehicles in the US.”

How to Diagnose P0016 Causes

Diagnosing P0016 starts with an OBD-II scanner. Whether you’re using a FIXD plug-in sensor with the accompanying app or a handheld device with a cable connection, identifying the code type is where to start. With a confirmed P0016 code, you can then get to work trying to identify the source of the trouble. The FIXD app will immediately point to the likely culprit, but more curious car owners and the DIY-inclined will want to do some investigating.

Other tools and supplies to have on hand for diagnosing the problem include gloves, a flashlight, and a rag.

Safety Essentials

Before exploring the source of a P0016 code, you’ll want to observe the following:

• Park on a level surface in a safe area
• Ensure the car is off and the parking brake is engaged
• Allow the engine to cool

Symptoms of P0016 Causes

Let’s dive into what could be causing a P0016 code. Unlike some other diagnostic trouble codes, P0016 can be caused by something simple, like a low oil level, or a significant issue, such as a defective timing chain. As a result, any symptom could be associated with any possible cause. Nonetheless, we’ve attributed the possible causes to a likely symptom of that issue.

If an inspection of the sensors and accompanying connections reveals no clues, the engine’s timing should be checked. A mechanic will use an oscilloscope to compare the signals from the two sensors. If the timing is off, the repairs will likely involve replacing a reluctor ring or the timing belt/chain.

Can I drive with Code P0016?

Quick answer: No it is not advisable to drive with code P0016

Driving with code P0016 is not advisable because it can cause severe engine damage. The decision to drive with this problem comes down to risk and common sense. Is it worth calling a tow truck rather than chance catastrophic engine failure and a four- or five-figure repair bill? For most, the answer is yes.

Driving just a few blocks with a defective timing chain can cause a worst-case scenario. Even if the problem is traced to low engine oil, there’s still a possibility that insufficient internal lubrication has caused a ticking time bomb. In short, it’s better to be safe than sorry.

Let’s explore this in greater detail by looking at the potential causes of a P0016 error code.

DIY | How To Fix P0016 Causes

When it comes to car repairs, DIY is a very uncertain term. A task that might be challenging for one person might be straightforward for the next. It’s all determined by mechanical skills, experience, and a willingness to tackle a project.

In the case of a P0016 code, the dividing line between DIY and the repair shop is whether the engine needs to be opened. If you’re confident with this level of work, chances are you don’t need to read this article. With this DIY versus mechanic boundary set, let’s review what’s realistic for a car owner to tackle independently.

The crucial aspect of any DIY repair is knowing when you’re over your head and should get professional help. Otherwise, you risk causing more damage or getting injured. With this advisory in mind, let’s consider what P0016 fixes may not always require a mechanic.

P0016 Code FAQs

References:

1. Repair-cost estimates, repairpal.com (various dates). Retrieved May 13, 2024, from repairpal.com.