why does my Honda Civic's engine light come on after oil change

Honda Civic 10th Generation (2016-2021)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

518 words

Problem Statement

Learn why your Honda Civic's engine light comes on after an oil change and how to diagnose and fix the issue with our step-by-step guide.

Affected Component

Engine

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening any components related to the oil system.

Symptoms

•Check engine light illuminated
•Possible decrease in engine performance
•Unusual engine noise (ticking or knocking)
•Oil pressure warning light may also appear
•Oil leak under the vehicle
•Poor fuel economy

Diagnostic Steps

1
Scan the vehicle's onboard computer for any stored error codes using an OBD-II scanner.
2
Check the engine oil level and condition to ensure proper oil is being used and that it's filled to the correct level.
3
Inspect the oil filter to verify that it was replaced correctly and is not leaking.
4
Examine the oil drain plug for leaks or improper torque.
5
Check the oil pressure sensor for faults or disconnections.
6
Inspect for any loose or disconnected electrical connectors related to the oil system.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Oil filter wrench
•Socket set
•Torque wrench
•Multimeter

Parts Required

•Engine oil (appropriate type)
•Oil filter
•Crush washer for the oil drain plug (if needed)

Related Faults

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Diagnostic Steps

1
Scan the vehicle's onboard computer for any stored error codes using an OBD-II scanner.
2
Check the engine oil level and condition to ensure proper oil is being used and that it's filled to the correct level.
3
Inspect the oil filter to verify that it was replaced correctly and is not leaking.
4
Examine the oil drain plug for leaks or improper torque.
5
Check the oil pressure sensor for faults or disconnections.
6
Inspect for any loose or disconnected electrical connectors related to the oil system.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery to prevent electrical shorts.

2. Inspect Oil Level and Condition

Use a dipstick to check the oil level; add oil if it’s low.
If oil appears dirty or contaminated, consider a full oil change.
Tools Required: Oil container, funnel.

3. Check Oil Filter

Locate the oil filter and inspect it for tightness and leaks.
If leaking, remove the old oil filter, lubricate the rubber gasket of the new filter, and install it securely.
Tools Required: Oil filter wrench.

4. Examine Oil Drain Plug

Inspect the oil drain plug for tightness; tighten to manufacturer specifications (typically 20-30 ft-lbs).
If the plug is leaking, replace the crush washer if necessary.
Tools Required: Socket set, torque wrench.

5. Test Oil Pressure Sensor

Locate the oil pressure sensor and check for any visible damage or disconnections.
Use a multimeter to test the sensor’s resistance; replace if readings are outside specifications.
Tools Required: Multimeter.

6. Clear Error Codes

After completing repairs, reconnect the battery and use the OBD-II scanner to clear any error codes.
Tools Required: OBD-II scanner.