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U2122 Engine Trouble Code

Meaning of U2122 engine trouble code is a kind of network trouble code and U2122 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,200. Taking your car into a shop will cost you around $210 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. Regardless of how you approach it, you should get this fixed right away.

U2122 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 U2122 code is occuring now you should check U2122 repair processes.
Now don't ask yourself; What should you do with U2122 code ?
The solution is here :

U2122 Possible Solution:

U2122 Engine

Gasoline engines use spark plugs to cause an explosion of fuel within the cylinder. In a properly timed engine, this explosion occurs at the proper moment to send the piston to the bottom of the cylinder and provide power to the drive shaft. If the plug wires are out of sequence, the explosion occurs at the wrong time. The improper timing of the explosion sometimes pushes the cylinder the wrong direction or interferes with the turning of the crank. As a result, the engine stutters or backfires, if it runs at all.

U2122 Code Meaning :

U 2 1 2 2
OBD-II Diagnostic Network (U) Trouble Code For Engine Fuel And Air Metering (Injector Circuit Malfunctions Only) Fuel Rail/System Pressure - Too High Turbocharger Boost Sensor A Circuit Low Glow Plug/Heater Circuit 'A' Malfunction

Regarding the U2122 code, it would probably be worthwhile to carefully inspect the wire harness near the intake manifold bracket. This is done most easily from below the car in the area near the oil filter.

U2122 OBD-II Diagnostic Network (U) Trouble Code Description

U2122 engine trouble code is about Glow Plug/Heater Circuit 'A' Malfunction.

Main reason For U2122 Code

The reason of U2122 OBD-II Engine Trouble Code is Fuel Rail/System Pressure - Too High.

U2122 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.