Engine Oil Pressure Sensor Failure
The engine oil pressure sensor is reporting an out-of-range signal.
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 oil pressure sensor is either detecting too high or too low of an oil pressure, which could mean there's a problem with the oil pump, a blockage, or the sensor itself is faulty.
What the computer is actually seeing
The engine control module (ECM) is receiving oil pressure readings that are outside the normal operating range, typically below 5 PSI or above 25 PSI, depending on engine specifications.
What a healthy reading looks like
Normal oil pressure at idle is typically 10-20 PSI and can go up to 40-60 PSI at higher RPMs, depending on the engine.
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.
- 1Check the engine oil level; top up if low.
- 2Inspect wiring and connectors at the oil pressure sensor for damage or corrosion.
- 3Using a multimeter, measure the voltage output from the oil pressure sensor; it should be between 0.5V and 4.5V, indicating proper function.
- 4If readings are low or erratic, replace the oil pressure sensor and retest.
- 5If the issue persists after replacement, check the oil pump and ensure the oil passage is clean.
Common causes
- Faulty oil pressure sensor
- Oil pump failure
- Clogged oil filter
- Low engine oil level
- Wiring issues between sensor and ECM
Typical repair cost
$$-$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's best not to drive if you see a low oil pressure warning, as it can lead to engine damage.
Will the code come back after clearing?
If the underlying problem isn't fixed, the code is likely to reappear.
Why does this code often pair with SPN 1008?
SPN 1008 is also related to oil pressure, indicating multiple issues with oil delivery or sensor dysfunction.
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