Detailed guide for SPN 3242 FMI 3
Back to top ↑Incorrect temperature can mean heat is detected where it shouldn’t, often due to air path restrictions.
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Share ↓SPN 3242 FMI 3Severity: Warning
SPN 3242 FMI 3: DPF intake gas temperature high – heated path fault
Quick Answer
DPF intake gas temperature high – heated path fault
Code
SPN 3242 FMI 3
Severity
Warning
Applies to
Check OEM application
Can I drive?
Driving suitability is not established by this code alone.
Common Symptoms
- Elevated intake temp
- Frequent heat warnings
- Possible regen termination
Likely Causes
- Blocked intake path
- Heat soak
- Faulty sensor
Common Fixes
- Verify intake sensor path
- Check for exhaust blockages
- Replace temp sensor
Full technical sections↓
What does SPN 3242 FMI 3 mean?
Back to top ↑DPF intake gas temperature high – heated path fault
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