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B1594 Engine Code Repair

Meaning of B1594 engine trouble code is a kind of body trouble code and when your car's 'B1594 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.

B1594 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 B1594 code is occuring now you should check B1594 repair processes.
Now don't ask yourself; What should you do with B1594 code ?
The solution is here :

B1594 Possible Solution:

B1594 Engine

Air Conditioning Pressure Sensor (ACP) Insufficient Pressure Change Each time the A/C clutch engages, the PCM is looking for a pressure change in the refrigerant. If the change in pressure is outside of the calibration the DTC will set. A/C system mechanical failure Open ACP or VREF circuit A/C sensor damaged A/C system electrical failure A/C clutch always engaged Verify A/C system function, including refrigerant charge.

B1594 Code Meaning :

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

1
Fuel And Air Metering

5
O2 Sensor Heater Circuit Malfunction

9
Ignition/Distributor Engine Speed Input Circuit Malfunction

4
Exhaust Gas Recirculation Sensor B Circuit High

The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions.

B1594 OBD-II Diagnostic Body (B) Trouble Code Description

B1594 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Main reason For B1594 Code

The reason of B1594 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.

B1594 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.