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B1491 Engine Trouble Code

B1491 Engine

When you check engine light came on code B1491 the reason should be . However your vehicle's manufacturer may have a different definition for the B1491 OBD-II Diagnostic Body (B) Trouble Code. So you should chech it on our car models.

B1491 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,000. Taking your car into a shop will cost you around $200 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. Regardless of how you approach it, you should get this fixed right away.

B1491 Code Meaning :

B 1 4 9 1
OBD-II Diagnostic Body (B) Trouble Code For Engine Fuel And Air Metering Fuel Temperature Sensor B Circuit Range/Performance Cylinder 4 Contribution/Balance Fault Glow Plug/Heater Circuit 'A' Malfunction

Regarding the B1491 code, it would probably be worthwhile to carefully inspect the wire harness near the intake manifold bracket. This is done most easily from below the car in the area near the oil filter.

B1491 OBD-II Diagnostic Body (B) Trouble Code Description

B1491 engine trouble code is about Glow Plug/Heater Circuit 'A' Malfunction.

Reason For B1491 Code

The reason of B1491 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.

B1491 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.