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P3490 Engine Trouble Code

P3490 Engine

When you check engine light came on code P3490 the reason should be . However your vehicle's manufacturer may have a different definition for the P3490 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P3490 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.

P3490 Code Meaning :

P 3 4 9 0
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Ignition System Or Misfire Fuel Temperature Sensor B Circuit Range/Performance Cylinder 4 Contribution/Balance Fault Exhaust Gas Recirculation Sensor B Circuit High

Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above.

P3490 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P3490 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For P3490 Code

The reason of P3490 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.

Parts or components should not be replaced with reference to only a P3490 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.