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U3722 Engine Trouble Code

Meaning of U3722 engine trouble code is a kind of network trouble code and U3722 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.

U3722 Fault Symptoms :

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

If one of these reasons for U3722 code is occuring now you should check U3722 repair processes.
Now don't ask yourself; What should you do with U3722 code ?
The solution is here :

U3722 Possible Solution:

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.

U3722 Code Meaning :

U	3	7	2	2
OBD-II Diagnostic Network (U) Trouble Code For Engine	Ignition System Or Misfire	Fuel Rail Pressure Sensor Circuit Malfunction	Turbocharger Boost Sensor A Circuit Low	Glow Plug/Heater Circuit 'A' Malfunction

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.

U3722 OBD-II Diagnostic Network (U) Trouble Code Description

U3722 engine trouble code is about Glow Plug/Heater Circuit 'A' Malfunction.

Main reason For U3722 Code

The reason of U3722 OBD-II Engine Trouble Code is Fuel Rail Pressure Sensor Circuit Malfunction.

U3722 the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.

	Example: 0140