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B1278 Engine Trouble Code

B1278 Engine

When you check engine light came on code B1278 the reason should be . However your vehicle's manufacturer may have a different definition for the B1278 OBD-II Diagnostic Body (B) Trouble Code. So you should chech it on our car models.

B1278 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.

B1278 Code Meaning :

B 1 2 7 8
OBD-II Diagnostic Body (B) Trouble Code For Engine Fuel And Air Metering Ambient Air Temperature Sensor Circuit Low Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector) Timing Reference High Resolution Signal A Too Many Pulses

Regarding the B1278 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.

B1278 OBD-II Diagnostic Body (B) Trouble Code Description

B1278 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses.

Reason For B1278 Code

The reason of B1278 OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low.

B1278 DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.