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P0367 is a diagnostic trouble code (DTC) for "Camshaft Position Sensor "B" Circuit Low (Bank 1)". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
The P0367 trouble code identifies that the camshaft position sensor “B” circuit is lower than sufficient.
Amongst other things, the PCM (powertrain control module) of a vehicle monitors the camshaft position sensor circuit’s voltage and waveform readings. If it detects an incorrect reading from camshaft sensor “B” located in engine bank 1 that is too low, it will log the P0367 trouble code.
Irregularities in the system reference voltage are tolerable up to 10% in either direction of the manufacturer’s accepted range. These measurements are taken by the camshaft position sensor. This electromagnetic sensor sits stationary on the camshaft and works with notches in the same location.
The most common reason behind this code being stored is because of oil or other engine fluids leaking out onto the vehicle’s sensors, wires or other electrical connectors. Usually, this, in turn, leads to shorted, grounded or broken wiring and/or loose or shorted electrical connectors.
However, the sensors themselves could also be to blame. If they’ve become faulty, their readings simply won’t be reliable. The camshaft position sensor harness could also be shorted or open. The circuitry that supplies the sensor could be damaged or struggling, or the battery could even be responsible.
If this code is stored, the check engine light should come on. In some models, though, the error actually has to occur more than once before this happens. An OBD-II scanner would show the code as pending in the meantime.
A far more noticeable symptom would be an engine that struggles to start, that idles loudly, or is choppy during operation. It might struggle to accelerate or otherwise display a low level of performance.
An experienced technician will begin their diagnosis by using their OBD-II scanner to pull all the trouble codes the vehicle has stored. They will then move on to inspecting the connectors and wiring for signs of damage caused by power steering fluid, antifreeze oil and other fluids.
Next, they’ll take a look at the sensors in question for signs of damage.
If none of these seem to be an issue, the mechanic may decide to use an oscilloscope to observe the camshaft, crankshaft and distributor’s waveforms. Any glitches or inconsistencies will lead them to the problem area.
One big mistake a mechanic may make when they see this code is replacing the camshaft sensor, but not examining the crankshaft sensor. More often than not, both will need to be replaced even if the code only pertains to one.
It’s also vital that the technician not make the mistake of thinking that the P0367 code only pertains to the sensor. The entire camshaft position sensor circuit could be in need of repairs. Hastily replacing just the sensor could also be a big mistake that allows future problems to persist.
In most cases, this code is definitely something to take seriously because of how difficult it can make it to drive the vehicle, much less start it. Fortunately, repairs for this problem can be fairly simple, but that’s all the more reason for it to be serviced ASAP.
Replacing a broken sensor may be all it takes, though sometimes, two or more have been damaged. In that case, the mechanic will also want to see if this is being caused by leaking fluid and then address the origin so this doesn’t continue to happen in the future.
It’s very important with this trouble code that the mechanic takes their time. Although we mentioned earlier how easy it can be to repair the problem, that’s not always the case. Being hasty could lead to much greater issues in the near future.
YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.