RAM PRESSURE CODES CODE

Start by connecting a scan tool to the car’s computer and click on the FPS data parameter. If everything looks good, the next step is to check the actual fuel pressure versus the desired fuel pressure reading. There could be a short somewhere where the wiring is in contact with a metal component of your car. You want to see if there are any damaged wires or loose connections.

RAM PRESSURE CODES CODE

The first step to diagnosing a P018C code in your car is to check the wiring that goes to the fuel pressure sensor. Poor installation of aftermarket parts and accessories.Burnt, shorted, corroded, damaged, or disconnected wiring.Rough idles, stumbling or hesitation when you try to accelerate.Engine shuts off immediately after starting due to a deactivated fuel pump.However, there are several other signs that you may notice depending on the application. Symptoms of Code P018C and High or Low Fuel PressureĪs mentioned earlier, the two most common symptoms of this problem are a check engine light and a stored OBD-II trouble code. When the PCM notices that the signal voltage is low and does not reflect what it expects to receive, it will activate the check engine light and set the code P018C. This either increases or decreases the amount of fuel being sent to the engine, hence, maintaining a constant fuel rate and pressure within the fuel rail.Īs you go on with your daily driving, the PCM expects to receive an accurate signal voltage from the fuel pressure sensor that reflects changes in pressure within the fuel rail.

The PCM then makes adjustments to the pulse width of the fuel injectors. The fuel pressure sensor converts the pressure changes into a signal voltage that goes directly to the PCM. The light should only come on when the high or low fuel pressure is outside of the normal range. This is due to changes in fuel demand as you drive in different conditions. You’ll mostly get a check engine light but no drivability issue.ĭuring normal driving, pressure varies constantly within the fuel rail. The problem is common in vehicles that come with a sensor to monitor fuel pressure. It pops up when the Power Control Module (PCM) receives an erratic signal voltage from the fuel pressure sensor. There are a few things that can cause this code like a bad sensor, or high or low fuel pressure.

P018C is an OBD II fault code that stands for “Fuel pressure sensor “B” Circuit Low”.

Ram pressure codes