Exhaust Gas Temperature (EGT) Sensor 2 Low
EGT Sensor 2 is reporting a low signal voltage.
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 Exhaust Gas Temperature Sensor 2 is supposed to provide a voltage signal that indicates the temperature of the exhaust gases. A low voltage usually means that the sensor is not detecting the expected heat, possibly due to a malfunction or a problem in the wiring.
What the computer is actually seeing
The engine control unit (ECU) expects a voltage signal around 0.5 to 4.5 volts, depending on the actual temperature. Below this range (e.g., below 0.5 volts) means it’s seeing a low temp signal and triggers the fault code.
What a healthy reading looks like
0.5 - 4.5 volts during normal operation, with higher values indicating higher exhaust temperatures.
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. Inspect the wiring and connectors to EGT Sensor 2 for damage or corrosion. Repair as necessary. Decision: Are the connections secure and the wires intact? Yes - move to step 2; No - fix wiring/connectors and retest.
Common causes
- Faulty EGT Sensor 2
- Wiring issue to the sensor
- Connector corrosion or damage
- Exhaust leaks affecting sensor readings
- ECU malfunction
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, but monitor for any unusual behavior like loss of power or excessive smoke.
Will this code clear itself?
Not usually; the issue must be resolved for the code to clear.
Why does this code pair with SPN 3368?
SPN 3368 relates to the first EGT sensor, issues in one can affect the other.
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