2003 dodge neon, error code PO551. power steering

code po551 refers to power steering pressure(PSP) sensor/ switch--range /performance problem===causes --PS system--PSP sensor/switch
Have the power steering pressure checked as it may be a pump problem or just the sensor/switch.. Check the reservoir level as it may be lacking fluid.

Power steering pressure switch is shaped somewhat like a spark plug (a bit too fat) threaded at one end and having a cylindrical plastic body at other end. It is on the hose connecting the power steering pump with the rack and pinion.

Here is the description for the code. You need to check the sensor and the wiring back to the computer.

P0551 DODGE Description Power steering pressure (PSP) sensor is installed to the power steering high-pressure tube and detects a power steering load. This sensor is a potentiometer which transforms the power steering load into output voltage, and emits the voltage signal to the Powertrain Control Module (PCM). The PCM controls the electric throttle control actuator and adjusts the throttle valve opening angle to increase the engine speed and adjusts the idle speed for the increased load.
Read more: http://engine-codes.com/p0551_dodge.html#ixzz21xtT1DTz

CODE PO551 - POWER STEERING PRESSURE SWITCH CIRCUIT FAILURE.

P0551 power steering pressure sensor circuit range performance, this sensor idles up the RPM as steering wheel is turn in order to maintain proper idle and to prevent vehicle from stalling

PO551 error code which indicates a power steering switch

i would check the power steering fluid to make sure it isn't low. if that checks out then i would just keep an eye on it.

Auto Zone will do a free code read and tell you what they are

Code po551 is for the steering sensor. It senses steering pressure and bumps up the idle a little to compensate for lower pressure. The switch number is 5269625 and costs approx 35.00. It is threaded into the back of the steering rack and is accessible from underneath the car. Unplug the electrical connector from the switch, clean with electrical cleaner, remove and replace switch, plug in electrical connector. Disconnect the battery for a few minutes to reset the check engine light. Hope this helps.

code po551 is power steering pressure switch circuit failure.