What does Sandvik fault code Engine 102-3 (Volvo) mean?

Q: What does Sandvik fault code Engine 102-3 (Volvo) mean?

Engine 102-3 (Volvo) indicates: Low power; High fuel consumption; Black smoke under load. Fix: Intake Manifold Pressure (Boost) Voltage High. LOGIC: Signal > 4.5V (Open Circuit). The ECM defaults to a "smoke-limiter" map because it can't verify air pressure. ACTION: 1. Inspect the wiring at the back of the intake manifold. 2. Bridge pins to check for FMI 4. 3. Check the turbocharger for wastegate seizure. FIX: Replace the Boost Pressure Sensor or repair the broken harness wire.

Sandvik Fault Code

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Engine 102-3 (Volvo)

Low power; High fuel consumption; Black smoke under load.

System

Not specified

Symptom

Low power; High fuel consumption; Black smoke under load.

Diagnosis & fix steps

Intake Manifold Pressure (Boost) Voltage High. LOGIC: Signal > 4.5V (Open Circuit). The ECM defaults to a "smoke-limiter" map because it can't verify air pressure. ACTION: 1. Inspect the wiring at the back of the intake manifold. 2. Bridge pins to check for FMI 4. 3. Check the turbocharger for wastegate seizure. FIX: Replace the Boost Pressure Sensor or repair the broken harness wire.

Red Seal field insights

Underground mining is a harsh environment for sensors. The heat and vibration often crack the plastic sensor housing. If you see cracks, replace it immediately even if the code is intermittent.

Same code keeps coming back?

That's a program problem, not a part problem. Book a 30-minute uptime review with Grant, a Red Seal Heavy Duty Technician.

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Read before you touch anything

This is general reference information, not a repair manual. It is for trained, qualified technicians.
Fault codes, meanings and procedures vary by model, serial number and software version. Confirm the code and the procedure against the manufacturer's service manual before acting.
Follow the OEM service manual, torque specs and your site's safety procedures: lockout/tagout, block raised equipment, relieve hydraulic, fuel and air pressure, and let hot systems cool.
You use this information at your own risk. Adventure Mechanical and AM Fleet Integrity accept no liability for damage, injury, downtime or loss arising from its use.
Not affiliated with or endorsed by any manufacturer. Brand names are used only to identify the equipment a code applies to.

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