P0106 P0113 P0238 VW Turbo – MAP Sensor G31 & IAT Sensor G42 Diagnostics
Diagnostic guide for P0106, P0113, and P0238 on Volkswagen turbo engines. Combined MAP/IAT sensor G31/G42 failure, 5V reference short, and high-boost signal faults.
Vehicle
VOLKSWAGEN
Codes
3 units
Analysis Type
Technical Expert
Status
Analyzed
Technical Analysis
The combination of P0106, P0113, and P0238 indicates an electrical fault in the combined MAP/IAT boost pressure and intake temperature sensor G31/G42 on VAG turbo engines, caused by 5V reference ground failure or oil fouling.
Expected Symptoms
System Impact
Potential Fault Sources
Workflow / Methodology
Verify supply voltage and sensor telemetry for P0106, P0113, P0238 on VOLKSWAGEN with multimeter at key ON.
Measure mechatronic hydraulic pressure in live data: normal 42–60 bar (DQ200) or 15–20 bar (DQ381).
Read clutch travel sensor calibration and slip RPM under launch load.
OBD Tuning provides 1:1 Complete Bench Cloning of DSG mechatronic control units to replacement modules.
Live Data & Mätvärdestoleranser (Är/Bör-värden)
Fabriksgodkända referensvärden vid diagnos och live-avläsning
| Parameter / Signal | Testvillkor | Bör-värde (Normalt) | Avvikelse / Varning |
|---|---|---|---|
| Givarreferensspänning | Tändning på | 4.95 – 5.05 V | < 4.75 V (Kortslutning/Spänningsfall) |
| Signalretur tomgång | Driftstemperatur | Inom fabriksintervall ±5% | Signalkorruption el avbrott |
Assessment & Action Proposal
Technical Recommendation
Repair wiring harness faults and install a new genuine MAP/IAT sensor G31/G42. Clean oil residue from charge pipe and clear DTCs.
Need a deeper analysis? Use our advanced fault code analyzer to find likely connections and in-depth guidance.
Start Fault Code AnalyzerVanliga frågor om dessa felkoder
Vad är den primära orsaken till felkoderna?
The combination of P0106, P0113, and P0238 indicates an electrical fault in the combined MAP/IAT boost pressure and intake temperature sensor G31/G42 on VAG turbo engines, caused by 5V reference ground failure or oil fouling.
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?
Repair wiring harness faults and install a new genuine MAP/IAT sensor G31/G42. Clean oil residue from charge pipe and clear DTCs.