Your Renault Laguna engine control system detects a problem, the computer stores the diagnostic trouble
code P2091 in its memory.
To figure out what is wrong with your vehicle you must first extract the P2091 DTC For Renault Laguna.
To solve P2091 Renault Laguna problem, you'll have to remove the muffler, crankcase and other components blocking the valve chamber. Then, remove the cylinder head bolts (label for easy re-installation) Adjust the jaws of the valve spring compressor until they touch the top and bottom of the valve chamber Push the tool in to compress the spring and tighten the jaws Remove the retainers and lift out the valves , compressors and springs
P2091 Renault Laguna DTC Meaning
Powertrain Code - Problem is related engine, transmission and emissions systems.
MFG - Manufacturer Specific
TP Sensor Learn Not Complete
PCM Stack Overrun
While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the P2091 Renault Laguna code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.