FMI 19 - Engine Oil Pressure - Low
Engine oil pressure is below normal operating levels.
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 sensor reading oil pressure is showing a value lower than what the engine needs to operate correctly, which can lead to engine damage.
What the computer is actually seeing
The engine control unit monitors the oil pressure to be between 25 to 60 psi at idle, depending on engine design. If readings drop below 5 psi, it sets the fault code SPN 5114.
What a healthy reading looks like
Engine oil pressure should be between 25 psi to 60 psi when warm and idling; readings below 5 psi trigger the code.
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; ensure it's within the normal range (minimum dipstick level). If low, top it up and recheck for codes.
- 22. Inspect the oil pressure sensor wiring and connector for damage or corrosion. Repair or replace as needed, then recheck for codes.
- 33. Using a mechanical oil pressure gauge, check the actual oil pressure while the engine is running. If pressure is below specified range (5 psi at idle), further inspection is needed.
- 44. If oil pressure is normal with the mechanical gauge, replace the oil pressure sensor and retest.
- 55. If oil pressure is low with the mechanical gauge, check the oil pump, oil passages, and filter for blockages or damage.
Common causes
- Low oil level in the engine
- Worn oil pump
- Faulty oil pressure sensor
- Clogged oil passages or filter
- Oil quality issues or wrong oil viscosity
Typical repair cost
$$ - $$$
Related codes
Frequently asked questions
Can I drive with this code active?
No, low oil pressure can cause severe engine damage; avoid driving until resolved.
Will this code come back after clearing it?
Yes, if the underlying issue isn't fixed, the code will likely return.
Why does this code sometimes pair with other engine codes?
Other codes may indicate related issues such as oil quality or sensor failure, which affect oil pressure.
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