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P1151 Engine Trouble Code

Meaning of P1151 engine trouble code is : 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 $200-$300 depending on the car, but that's usually the cost of parts because the labor is relatively simple.

P1151 Possible Solution:

P1151 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.

P1151 Code Meaning :

P 1 1 5 1
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering Fuel Rail/System Pressure - Too High Cylinder 1 Injector Circuit Low Crankshaft Position Sensor A Circuit Low Input

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.

P1151 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1151 OBD-II Trouble Code Lack Of HO2S21 Switch - Sensor Indicates Lean is one of the definitions for the P1151; however your vehicles manufacturer may have a different definition for the P1151 code. Please check below for you P1151 code.

Reason For P1151 Code

The reason of P1151 OBD-II Engine Trouble Code is Fuel Rail/System Pressure - Too High.

P1151 DTC reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.