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U20UU Engine Trouble Code

Meaning of U20UU engine trouble code is a kind of network trouble code and U20UU 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.

U20UU Fault Symptoms :

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

If one of these reasons for U20UU code is occuring now you should check U20UU repair processes.
Now don't ask yourself; What should you do with U20UU code ?
The solution is here :

U20UU Possible Solution:

The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time.If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver.

U20UU Code Meaning :

U	2	0	u	u
OBD-II Diagnostic Network (U) Trouble Code For Engine	Fuel And Air Metering (Injector Circuit Malfunctions Only)	Ambient Air Temperature Sensor Circuit Low

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.

U20UU OBD-II Diagnostic Network (U) Trouble Code Description

U20UU engine trouble code is about .

Main reason For U20UU Code

The reason of U20UU OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low.

U20UU 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