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U3404 Engine Trouble Code

Meaning of U3404 engine trouble code is a kind of network trouble code and when the check engine light comes U3404 code on the first you should check is the gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. Alternately, you can purchase a gas cap for about $3 at an auto parts store. All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage.

U3404 Fault Symptoms :

Check engine light comes on
Engine stalling or misfiring
Engine performance issues
Car not starting

If one of these reasons for U3404 code is occuring now you should check U3404 repair processes.
Now don't ask yourself; What should you do with U3404 code ?
The solution is here :

U3404 Possible Solution:

Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self-Test, this DTC indicates that the PSP input did not change state. Steering wheel must be turned during Key On, Engine Running Self-Test PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged.

U3404 Code Meaning :

U	3	4	0	4
OBD-II Diagnostic Network (U) Trouble Code For Engine	Ignition System Or Misfire	O2 Sensor Heater Circuit Malfunction	Cold Start Injector 1 Malfunction	Timing Reference High Resolution Signal A Too Many Pulses

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.

U3404 OBD-II Diagnostic Network (U) Trouble Code Description

U3404 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses.

Main reason For U3404 Code

The reason of U3404 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.

U3404 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.

	Example: 0140