Engine Oil Pressure Low
Indicates low oil pressure in the engine.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The engine's oil pressure is lower than what’s needed for proper lubrication, risking engine damage.
What the computer is actually seeing
The Engine Control Module (ECM) monitors oil pressure through a sensor. Normal operating pressure is usually between 25-75 PSI (pounds per square inch). A reading below the threshold triggers this code.
What a healthy reading looks like
Normal oil pressure should be within 25-75 PSI when the engine is at operating temperature.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check the engine oil level; it should be between the min/max marks on the dipstick.
- 22. Inspect wiring and connectors to the oil pressure sensor for damage or corrosion; repair if necessary.
- 33. Measure the oil pressure manually with a mechanical gauge; it should read 25-75 PSI. If low, go to step 4.
- 44. If the oil pressure sensor is faulty (not within expected range), replace the sensor. Otherwise, check oil pump and bearings.
Common causes
- Low oil level
- Faulty oil pressure sensor
- Oil pump failure
- Clogged oil filter
- Worn engine bearings
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
No, driving with low oil pressure can cause severe engine damage.
Will this code come back after repairs?
If the underlying issue is fixed (like a sensor replacement or correcting oil levels), the code should not return.
Why do I also see SPN 1005 with this code?
SPN 1005 indicates a specific sensor failure related to oil pressure and is often seen together with SPN 1514.
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