Engine Intake Manifold #1 Pressure — Data Valid But Above Normal (Most Severe)
The VOLVO-MACK-SPN102-FMI0 (Volvo/Mack D/MP Series) diesel fault code means: Engine Intake Manifold #1 Pressure — Data Valid But Above Normal (Most Severe). This is a serious severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- intermediate
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What Are the Symptoms of VOLVO-MACK-SPN102-FMI0?
- Check Engine or an aftertreatment warning light
- A Engine Intake Manifold #1 Pressure reading outside its normal range on the diagnostic software
- Possible derate depending on severity level
What Causes VOLVO-MACK-SPN102-FMI0? (Most Likely First)
- The condition the Engine Intake Manifold #1 Pressure parameter measures is genuinely out of range High
- Sensor reading wrong (sensor or wiring) Medium
- A related system fault driving the value out of range Medium
Can I Still Drive with VOLVO-MACK-SPN102-FMI0?
Short distances only. VOLVO-MACK-SPN102-FMI0 is rated serious severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What does SPN 102 FMI 0 mean?
SPN 102 is "Engine Intake Manifold #1 Pressure" in the SAE J1939 Digital Annex, and FMI 0 means the measured value is above its normal operating range at the most severe level. Together they say the measured value is above its normal operating range at the most severe level for that parameter.
Is this a Volvo / Mack-specific code?
No. It is a standard J1939 SPN and FMI pair, so the parameter and failure mode mean the same on any J1939 engine. What Volvo / Mack checks before setting it, and what the truck does about it, is in Volvo / Mack service information.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose VOLVO-MACK-SPN102-FMI0?
Read the live Engine Intake Manifold #1 Pressure value and compare it with the expected range for the operating condition.
Compare it with related sensors to decide whether the condition is real or the sensor is wrong.
Follow the manufacturer's procedure for the pair before replacing parts.
Sources 2
This page is built from documented references. Verify against your own service info before repair work.
- SPN 102 record in the ISOBUS Data Dictionary (ISO 11783 online database), reproducing the SAE heavy-duty Digital Annex (DA) name "Engine Intake Manifold #1 Pressure". Establishes what the SPN names, not what a Volvo / Mack display shows for it.ISO 11783 online database copy of the SAE J1939 Digital Annex SPN list — readable, not SAE’s current edition
- SAE J1939-73Application Layer: Diagnostics (defines the SPN/FMI fault-identifier framework)
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