Q: What does Volvo fault code SPN 4334 FMI 18 mean?

SPN 4334 FMI 18 (Aftertreatment): DEF Pressure Low Fix: LOGIC: DEF Dosing Pressure below 10 PSI. ACTION: Replace the DEF pump filter and check the suction line for kinks.

Q: What does Volvo fault code Volvo MID 128 PID 102 mean?

Volvo MID 128 PID 102 (Air): Black Smoke / Power Loss. Fix: LOGIC: Boost Pressure (MAP) Sensor - Data Erratic. ACTION: Check the boost hose to the sensor. If it's oily/clogged, the sensor won't read.

Question 1

What does Volvo fault code MID 130 PID 161 mean?

Accepted Answer

MID 130 PID 161: Clutch Slip. Fix: LOGIC: Input shaft speed doesn't match engine speed during engagement.

ACTION: Perform a "Clutch Engagement Constant" calibration using Premium Tech Tool.

Question 2

What does Volvo fault code MID 187 mean?

Accepted Answer

MID 187 (Network): V-ECU Communication Failure Fix: LOGIC: Loss of contact with the Vehicle Control Unit.

ACTION: Clean the main 64-pin connector at the V-ECU.

Question 3

What does Volvo fault code P001676 mean?

Accepted Answer

P001676 (Engine): Crank/Cam Correlation Error. Fix: LOGIC: Timing misalignment detected.

ACTION: Inspect the tone wheel for debris. Check the "Air Gap" on the crank sensor. If the gap is correct, check for timing chain/gear wear.

Question 4

What does Volvo fault code P008A00 mean?

Accepted Answer

P008A00: Engine Stalling. Fix: LOGIC: Low-pressure fuel system pressure is too low.

ACTION: Replace primary/secondary filters; pressure test the low-pressure fuel line from the tank.

Question 5

What does Volvo fault code P024471 mean?

Accepted Answer

P024471: Underboost. Fix: LOGIC: Bypass damper (Wastegate) stuck closed.

ACTION: Inspect actuator linkage for physical binding; perform a service routine test for the actuator.

Question 6

What does Volvo fault code P100D18 mean?

Accepted Answer

P100D18 (Fuel System): Injector 1 Current Low. Fix: LOGIC: Injector circuit open or high resistance.

ACTION: Pop the valve cover. Check the injector harness for "rub-throughs" against the rocker gear. Replace the internal harness if brittle.

Question 7

What does Volvo fault code P102113 mean?

Accepted Answer

P102113: Weak Engine Brake. Fix: LOGIC: Volvo Compression Brake (VCB) circuit open.

ACTION: Check the solenoid resistance and inspect the internal harness under the valve cover.

Question 8

What does Volvo fault code SPN 1761 FMI 1 mean?

Accepted Answer

SPN 1761 FMI 1 (Emissions / DEF): AdBlue Low Warning / 5 MPH Derate Fix: LOGIC: DEF Tank Level Sensor Raw Reading Critically Low (<2.5%).

ACTION: Check DEF tank fluid level. If full, remove multi-function tank head unit and inspect magnetic reed switch float for mechanical sticking caused by dried urea crystallization.

Question 9

What does Volvo fault code SPN 4334 FMI 18 mean?

Accepted Answer

SPN 4334 FMI 18 (Aftertreatment): DEF Pressure Low Fix: LOGIC: DEF Dosing Pressure below 10 PSI.

ACTION: Replace the DEF pump filter and check the suction line for kinks.

Question 10

What does Volvo fault code Volvo MID 128 PID 102 mean?

Accepted Answer

Volvo MID 128 PID 102 (Air): Black Smoke / Power Loss. Fix: LOGIC: Boost Pressure (MAP) Sensor - Data Erratic.

ACTION: Check the boost hose to the sensor. If it's oily/clogged, the sensor won't read.

Volvo Fault Codes

Ready to take control of your fleet maintenance?

Other manufacturers

Code	System	Symptom	Full fix
MID 130 PID 161	—	Clutch Slip.	View fix
MID 187	Network	V-ECU Communication Failure	View fix
P001676	Engine	Crank/Cam Correlation Error.	View fix
P008A00	—	Engine Stalling.	View fix
P024471	—	Underboost.	View fix
P100D18	Fuel System	Injector 1 Current Low.	View fix
P102113	—	Weak Engine Brake.	View fix
SPN 1761 FMI 1	Emissions / DEF	AdBlue Low Warning / 5 MPH Derate	View fix
SPN 4334 FMI 18	Aftertreatment	DEF Pressure Low	View fix
Volvo MID 128 PID 102	Air	Black Smoke / Power Loss.	View fix
Volvo MID 128 SID 27	Turbo	VGT Lockout.	View fix