The high-pressure pump should also be tested to ensure it is capable of delivering the required volume of fuel. A faulty maximum pressure relief valve will also cause this situation. This causes fuel from the high-pressure circuit to be leaked back to the low-pressure circuit. The vehicle in the video was a 1992 f150. I'll describe the basic KOEO (Key On Engine Off) test: First you'll need a piece of wire of some sorts to connect two terminals. '''Here's how to read the codes using your check engine light (CEL). A short circuit on the control wire of a normally open fuel volume regulator will also cause this fault.Ī fault in the fuel injector return system will cause the fuel pressure to be lower than expected. This self test procedure might be the same for 1983-1995 fords with the eec-iv system. Heres the post luck圓7 posted when I needed to pull codes.I used a paper clip to jump from plug to plug.worked for me.hope it helps. An electrical fault such as an open circuit in the fuel volume regulator on a system with a normally closed valve will also cause this situation. Normally manufacturers will support data parameters for actual and desired fuel pressure.Ī number of issues may cause this fault code to be set such as a faulty fuel rail pressure sensor, a mechanical fault with the fuel volume regulator could cause the valve to become stuck. Within the VIN code for Ford vehicles, eight characters of the 17-character sequence provide information about the engine. Reason for Ford C-max Ii P1612 and find the solution for the code Ford C-max Ii P1612, we'll give to how to fix. The fuel pressure regulator circuit integrity is also monitored to ensure the circuit and component are functioning correctly. Ford C-max Ii P1612 OBD-II Diagnostic Powertrain (P) Trouble Code Information Page. The engine control module uses feedback from the fuel pressure sensor to monitor fuel pressure. This fault code is stored in the engine control module when the system cannot correctly control the fuel pressure.

How to check ford engine codes