Umair Ramzan 
Oil pressure is one of the most important indicators of an engine’s health. It is responsible for lubricating the engine’s moving parts, and when the oil pressure is low, it can lead to serious engine damage. Therefore, regularly checking the oil pressure is essential to ensure your vehicle is running smoothly. This post will discuss how to check oil pressure with an OBD2 scanner.
What is an OBD2 Scanner?
An OBD2 scanner is a diagnostic tool that connects to your vehicle’s On-Board Diagnostics (OBD) system. It allows you to read and clear diagnostic trouble codes and monitor engine parameters, such as oil pressure. OBD2 scanners come in different forms, including hand-held and smartphone apps connecting to a Bluetooth adapter.
Step-by-Step Guide to Checking Oil Pressure with an OBD2 Scanner
- Connect the OBD2 scanner to the vehicle’s diagnostic port, usually located under the dashboard on the driver’s side.
- Turn the key to the “on” position without starting the engine.
- Select the “oil pressure” option on the scanner’s menu.
- The scanner will display the current oil pressure in PSI (pounds per square inch).
- Compare the reading with the manufacturer’s recommended oil pressure for your make and model.
What is a Normal Oil Pressure?
The normal oil pressure for most vehicles ranges from 25 to 65 PSI. However, it can vary depending on the make and model of the vehicle. It’s essential to refer to the owner’s manual or the vehicle’s specifications to determine your vehicle’s appropriate oil pressure range.
What Causes Low Oil Pressure?
There are several reasons why oil pressure may be low, including:
- Low oil level
- Clogged oil passages or filters
- Worn engine bearings
- Faulty oil pump
- Damaged oil pressure sensor
If the oil pressure is low, diagnosing and fixing the problem as soon as possible is important to prevent severe engine damage.
Frequently Asked Questions
How often should I check my oil pressure?
It’s recommended to check the oil pressure at least once a month or more frequently if you notice any signs of low oil pressure, such as a warning light on the dashboard or unusual engine noises.
Can I check the oil pressure without an OBD2 scanner?
You can check the oil pressure without an OBD2 scanner using a mechanical oil pressure gauge. These gauges can be purchased at most auto parts stores and are relatively easy to install.
What should I do if my oil pressure is low?
If your oil pressure is low, diagnosing and fixing the problem as soon as possible is important. Some common causes of low oil pressure include low oil levels, clogged oil passages or filters, worn engine bearings, faulty oil pumps, and damaged oil pressure sensors. It’s best to consult a professional mechanic if you need help with diagnosing or fixing the problem.
Is it safe to drive with low oil pressure?
No, it’s not safe to drive with low oil pressure. Low oil pressure can cause severe engine damage, and diagnosing and fixing the problem as soon as possible is important. Suppose you notice any signs of low oil pressure, such as a warning light on the dashboard or unusual engine noises. In that case, it’s best to stop driving and have the vehicle inspected by a professional mechanic.
Can I use any OBD2 scanner to check oil pressure?
Most OBD2 scanners can read and display oil pressure, but it’s important to check the specific features of the scanner before purchasing to ensure that it can read oil pressure. Not all scanners have the same capabilities, so it’s best to choose one that is compatible with your specific vehicle make and model.
Will my oil pressure reading be affected by the type of oil I use?
The type of oil you use may not directly affect the oil pressure reading, but using the kind of oil recommended for your specific vehicle make and model can help ensure optimal performance and engine health.
Can high oil pressure damage my engine?
High oil pressure can also cause damage to an engine, although it is less common than low oil pressure. High oil pressure can damage seals and gaskets and can also cause leaks. It’s important to keep an eye on the oil pressure and ensure it’s within the recommended range for your specific vehicle make and model.
Can a bad oil pressure sensor cause a low oil pressure reading?
Yes, a bad oil pressure sensor can cause a low oil pressure reading. The sensor measures the oil pressure and sends a signal to the engine control module. The faulty sensor may not accurately measure the oil pressure, resulting in a low reading.
Can I check oil pressure with a smartphone app?
Yes, there are smartphone apps that can be used in conjunction with a Bluetooth OBD2 adapter to read and display oil pressure. These apps are convenient and can be used on the go, but it’s important to ensure that the app is compatible with your specific vehicle make and model before purchasing.
