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B0157 Engine Code Repair

Meaning of B0157 engine trouble code is a kind of body trouble code and B0157 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 $2,140 and you can't do it yourself unless you're an experienced mechanic.

B0157 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting

If one of these reasons for B0157 code is occuring now you should check B0157 repair processes.
Now don't ask yourself; What should you do with B0157 code ?
The solution is here :

B0157 Possible Solution:

B0157 Engine

The firing order is an important part of the overall design of the engine and is determined during the design of the engine to eliminate as much engine vibration as possible. If the firing order is changed or adjusted, the ignition from the spark plug is delivered at the wrong time and the engine functions poorly or does not run. The firing order for a particular engine is typically found in the repair manual specific to that model.

B0157 Code Meaning :

B
OBD-II Diagnostic Body (B) Trouble Code For Engine

0
Intake Valve Control Solenoid Circuit Low

1
Ambient Air Temperature Sensor Circuit Low

5
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)

7
Ignition Coil A Primary/Secondary Circuit Malfunction

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.

B0157 OBD-II Diagnostic Body (B) Trouble Code Description

B0157 engine trouble code is about Ignition Coil A Primary/Secondary Circuit Malfunction.

Main reason For B0157 Code

The reason of B0157 OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low.

B0157 DTC reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.