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P129B Engine Trouble Code

Meaning of P129B engine trouble code is a kind of powertrain trouble code and P129B 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.

P129B Fault Symptoms :

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

If one of these reasons for P129B code is occuring now you should check P129B repair processes.
Now don't ask yourself; What should you do with P129B code ?
The solution is here :

P129B 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.

P129B Code Meaning :

P	1	2	9	b
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine	Fuel And Air Metering	Manifold Absolute Pressure/Barometric Pressure Circuit High Input	Crankshaft Position Sensor A Circuit 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.

P129B OBD-II Diagnostic Powertrain (P) Trouble Code Description

P129B engine trouble code is about .

Main reason For P129B Code

The reason of P129B OBD-II Engine Trouble Code is Manifold Absolute Pressure/Barometric Pressure Circuit High Input.

Parts or components should not be replaced with reference to only a P129B DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.

	Example: 0140