2004年12月4日 · P1237=Fuel Pump Secondary Circuit (Fuel Pump Driver Module) Electronic Returnless Fuel Systems (ERFS) utilize a Fuel Pump Driver Module (FPDM) to control fuel pressure. The PCM uses a Fuel Rail Pressure Sensor (FRP) for feedback. The PCM outputs a duty cycle to the FPDM to maintain the desired fuel rail pressure.

2012年8月21日 · P1237 Code Troubleshooting: Problem Resolved! Jump to Latest 7.1K views 0 replies 1 participant last post by Prariefocus Aug 21, 2012

2005年9月12日 · 2000 SE 65K DOHC. It won't start, suspect fuel pump. Don't hear the pump run when key is turned on. So I checked for fault codes, and it comes up as P1237; Fuel Pump secondary circuit fault. Before I dig into the fuel pump, I …

2010年8月3日 · P1237 code keeps throwing, even right away after I reset... Even disconnected the battery for a few min.. when I first start the car it goes to 1000 RPM then drops to 850 RPM then back to 1000 RPM with in seconds. other then that the car runs mint[thumb] what i did notice is that the FPDM gets wicked hot after driving it a short time (10 Min)

2010年4月6日 · P1237 - Fuel Pump Secondary Circuit Malfunction Indicates that the FPDM has detected a fuel pump secondary circuit fault. The FPDM will send a message to the PCM through the FPM circuit, indicating that this failure has been detected. The PCM will set the DTC when the message is received. Open or shorted FP PWR circuit Open FP RTN circuit to FPDM

2012年8月13日 · P1237 - Fuel Pump Secondary Circuit Malfunction Indicates that the FPDM has detected a fuel pump secondary circuit fault. The FPDM will send a message to the PCM through the FPM circuit, indicating that this failure has been detected.

2021年3月14日 · Are the high pressure and low pressure sensors the same? Im having the same issue and already replaced the hpfp and am looking into the low pressure sensor to replace but ford's parts site doesn't distinguish which sensors are high or low pressure.

2009年9月6日 · Stupid p1237..help!! Jump to Latest 1.5K views 1 reply 2 participants last post by Phacade Sep 6, 2009

2023年11月21日 · 02 ZX3 Cold Start with Engine Misfiring/Raw Gas Smell/Died with Code P1237 Please Help. Jump to Latest ...

2005年12月19日 · p1237 engine code Jump to Latest 1.5K views 2 replies 3 participants last post by penguin Dec 20, 2005