Porsche Boxster Type 987 U3904 Engine Trouble Code
Porsche Boxster Type 987 U3904 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,000 and you can't do it yourself unless you're an experienced mechanic.
Porsche Boxster Type 987 U3904 Code Meaning :
OBD-II Diagnostic Network (U) Trouble Code For Engine
Ignition System Or Misfire
Engine Oil Temperature Sensor Malfunction
Crankshaft Position Sensor A Circuit Malfunction
Exhaust Gas Recirculation Sensor B Circuit High

When you check Porsche Boxster Type 987 car engine light came on code U3904 the reason should be . However manufacturer may have a different definition for the U3904 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.
U3904 OBD-II Diagnostic Network (U) Trouble Code Description
U3904 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.Reason For U3904 Code
The reason of U3904 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.U3904 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.
U3903 Previous Engine Trouble Code For Porsche Boxster Type 987 | Next Engine Trouble Code For Porsche Boxster Type 987 U3905 |