P0671, P0672, P13D0 Audi 2.0 TDI EA288 – PSG Glow Plug Pressure Sensor
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
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
System Impact
Potential Fault Sources
Workflow / Methodology
Verify supply voltage and sensor telemetry for P0671, P0672, P13D0 on AUDI with multimeter at key ON.
Measure wastegate position feedback voltage at key ON: normal 3.5–3.9 V in closed position.
Smoke-test induction system and boost plumbing at 1.2 bar to pinpoint leaks.
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
| Parameter / Signal | Testvillkor | Bör-värde (Normalt) | Avvikelse / Varning |
|---|---|---|---|
| Glödstift värmemotstånd | Kall motor (avstängd) | 0.3 – 0.8 Ω | > 2.0 Ω el avbrott (∞ Ω) |
| PSG Givarsignal Tomgång | Tomgång 800 rpm | 35 – 45 bar peak | < 20 bar el fastfrusen signal |
| PSG 5V Referensspänning | Tändning på | 4.95 – 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.
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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.