U143B Engine Trouble Code
Meaning of U143B engine trouble code is a kind of network trouble code and theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $240-$400 depending on the car, but that's usually the cost of parts because the labor is relatively simple.
U143B Fault Symptoms :
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If one of these reasons for U143B code is occuring now you should check U143B repair processes.
Now don't ask yourself; What should you do with U143B code ? The solution is here : |
U143B 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. |
U143B Code Meaning :
U | 1 | 4 | 3 | b |
---|---|---|---|---|
OBD-II Diagnostic Network (U) Trouble Code For Engine | Fuel And Air Metering | O2 Sensor Heater Circuit Malfunction | Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector) |
The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.
U143B OBD-II Diagnostic Network (U) Trouble Code DescriptionU143B engine trouble code is about .Main reason For U143B CodeThe reason of U143B OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction. |
U143B 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.