Mercedes-benz S550 P1131 Engine Error Code

When you check Mercedes-benz S550 car engine light came on code P1131 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Mercedes-benz manufacturer may have a different definition for the P1131 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

To solve P1131 Mercedes-benz S550 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

Mercedes-benz S550 P1131 OBD-II Diagnostic Powertrain (P) Trouble Code Description Mercedes-benz S550 car P1131 OBD-II Trouble Code Lack Of HO2S Switch - Sensor Indicates Lean is one of the definitions for the P1131; however your vehicles manufacturer may have a different definition for the P1131 code. Please check below for your Reason For Mercedes-benz S550 P1131 Code The reason of Mercedes-benz S550 P1131 OBD-II Engine Error Code is P1131 Lack Of HO2S Switch - Sensor Indicates Lean.

If your vehicle failed a P1131 Mercedes-benz S550 test and the Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look P1131 Mercedes-benz S550: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.

Mercedes-benz S550 P1131 Possible Solution :

Power Steering Pressure (PSP) Switch Signal Malfunction The PCM counts the number of times vehicle speed transitions from 0 to a calibratable speed. After a calibratable number of speed transitions the PCM expects that the PSP input should have changed. This DTC is set if the transition is not detected. Vehicle towed with engine running Power steering hydraulic concern was repaired but DTC was not erased PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged Check, if possible, if vehicle was towed or power steering service was performed. Observe PSP V PID while checking wires for intermittents.

What does fault code P1131 mean for Mercedes-benz S550 ? What does a diagnostic reading P1131 mean for Mercedes-benz S550 ? How to fix OBD2 Code P1131 for Mercedes-benz S550 ? What do we know about P1131 code for Mercedes-benz S550 ?