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Renault Laguna P2791 Engine Trouble Code

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.

Renault Laguna P2791 Code Meaning :

P 2 7 9 1
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering (Injector Circuit Malfunctions Only) Fuel Rail Pressure Sensor Circuit Malfunction Crankshaft Position Sensor A Circuit Malfunction Crankshaft Position Sensor A Circuit Low Input
Renault Laguna Engine

When you check Renault Laguna car engine light came on code P2791 the reason should be . However manufacturer may have a different definition for the P2791 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P2791 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 P2791 code is occuring now you should check P2791 repair processes.
Now don't ask yourself; What should you do with P2791 code ?
The solution is here :

Renault Laguna P2791 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.

P2791 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P2791 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.

Reason For P2791 Code

The reason of P2791 OBD-II Engine Trouble Code is Fuel Rail Pressure Sensor Circuit Malfunction.

Parts or components should not be replaced with reference to only a P2791 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.