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AUDI
P0671
P0672
P13D0

P0671, P0672, P13D0 Audi 2.0 TDI EA288 – PSG Glow Plug Pressure Sensor

Diagnostic Priority: High
Complexity Level: Advanced

Diagnostic guide for P0671, P0672, and P13D0 on Audi 2.0 TDI EA288. Troubleshooting integrated combustion pressure glow plugs (PSG) and wiring.

Vehicle

AUDI

Codes

3 units

Analysis Type

Technical Expert

Status

Analyzed

Technical Analysis

REF: #B387DB

The combination of P0671, P0672, and P13D0 on Audi 2.0 TDI EA288 indicates an electrical circuit fault or implausible signal from the integrated combustion chamber pressure sensors (PSG) in cylinder 1 and 2 glow plugs.

Expected Symptoms

Check engine light illuminated with sudden boost drop under hard acceleration on AUDI (DTCs: P0671, P0672, P13D0)
Rough idle and sluggish throttle pickup from a dead stop
Misfiring and hesitation during high-speed highway overtaking (2,500–3,500 RPM)

System Impact

Drivetrain
Engine Control
Emission Control

Potential Fault Sources

01Sticking electronic wastegate actuator or heavy carbon buildup on intake valves (affecting AUDI subsystem for P0671, P0672, P13D0)
02Boost control solenoid N75 leakage or split charge air hose
03Ruptured diaphragm in PCV oil separator assembly (logged fault: P0671)

Workflow / Methodology

01

Verify supply voltage and sensor telemetry for P0671, P0672, P13D0 on AUDI with multimeter at key ON.

02

Measure wastegate position feedback voltage at key ON: normal 3.5–3.9 V in closed position.

03

Smoke-test induction system and boost plumbing at 1.2 bar to pinpoint leaks.

04

Check crankcase depression with digital manometer at warm idle (-100 to -150 mbar).

Live Data & Mätvärdestoleranser (Är/Bör-värden)

Fabriksgodkända referensvärden vid diagnos och live-avläsning

Mätvärdesblock
Parameter / SignalTestvillkorBör-värde (Normalt)Avvikelse / Varning
Glödstift värmemotståndKall motor (avstängd)0.3 – 0.8 Ω> 2.0 Ω el avbrott (∞ Ω)
PSG Givarsignal TomgångTomgång 800 rpm35 – 45 bar peak< 20 bar el fastfrusen signal
PSG 5V ReferensspänningTändning på4.95 – 5.05 V< 4.70 V (Kablagefel/Styrdon)

Assessment & Action Proposal

Technical Recommendation

Replacement of faulty PSG pressure sensing glow plug torqued to 15–18 Nm and resetting combustion pressure adaptations in ECU.

Need a deeper analysis? Use our advanced fault code analyzer to find likely connections and in-depth guidance.

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Vanliga frågor om dessa felkoder

Vad är den primära orsaken till felkoderna?

The combination of P0671, P0672, and P13D0 on Audi 2.0 TDI EA288 indicates an electrical circuit fault or implausible signal from the integrated combustion chamber pressure sensors (PSG) in cylinder 1 and 2 glow plugs.

Kan man köra vidare med tänd motorlampa / varningslampa?

Körning med aktiva felkoder kan leda till strypt motoreffekt (nödläge / Limp Home), blockerad partikelfilterregenerering eller följdskador på mekaniska komponenter. Felsökning bör genomföras omgående.

Hur åtgärdas kombinationen på säkrast sätt?

Replacement of faulty PSG pressure sensing glow plug torqued to 15–18 Nm and resetting combustion pressure adaptations in ECU.