U3394 Engine Code Repair
Meaning of U3394 engine trouble code is a kind of network trouble code and when your car's 'U3394 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.
U3394 Fault Symptoms :
- Check engine light comes on
- Engine stalling or misfiring
- Engine performance issues
- Car not starting
If one of these reasons for U3394 code is occuring now you should check U3394 repair processes.
Now don't ask yourself; What should you do with U3394 code ?
The solution is here :
U3394 Possible Solution:
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.
U3394 Code Meaning :
U
OBD-II Diagnostic Network (U) Trouble Code For Engine
3
Ignition System Or Misfire
3
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
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.
U3394 OBD-II Diagnostic Network (U) Trouble Code DescriptionU3394 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.Main reason For U3394 CodeThe reason of U3394 OBD-II Engine Trouble Code is Manifold Absolute Pressure/Barometric Pressure Circuit High Input. |
U3394 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.