P0230 Code On Memoscan U381 Tool.....

[xsar@hdi2008]

right keep getting 3 P0230 codes logged on MeMoScAn U381 tool...#

 

i know it is fuel related but not sure if best to start pump end or relay end ? has anyone else got this issue and have you resolved it loss of power and stalling complete cut out of power

 

without warning or hesitation car starts 1st time and runs when driven well , just wont idle for more then 20 mins without hitting gas pedal and stalling the car..

 

1.Wiring and/or connections to/from fuel pump(relay) shorted/open

 

2.Fuel pump damaged

 

3.Control Module damaged

 

P0230 - Fuel Pump

: :NOTE: For natural gas : * Open or shorted : * When the FPF PID :

: Primary Circuit : applications, the : fuel pump (FP) : reads YES, a fault :

: Malfunction : following description : circuit : is currently :

: : applies to the fuel : * Open VPWR circuit : present. :

: : shutoff valve (FSV) : to fuel pump relay : * An open circuit or :

: : circuit. The PCM : * Damaged fuel pump : short to ground can :

: : monitors the fuel pump : relay : only be detected :

: : (FP) circuit output : * Damaged PCM : with the fuel pump :

: : from the PCM. The test : : commanded OFF. :

: : fails if: With the FP : : * A short to power :

: : output commanded ON : : can only be :

: : (grounded), excessive : : detected with the :

: : current draw is : : fuel pump commanded :

: : detected on the FP : : ON. :

: : circuit; or with the : : * During KOEO and :

: : FP output commanded : : KOER self-test, the :

: : OFF, voltage is not : : fuel pump output :

: : detected on the FP : : command will be :

: : circuit (the PCM : : cycled ON and OFF. :

: : expects to detect VPWR :

: : voltage coming through :

: : the fuel pump relay :

: : coil to the FP :

: : circuit). :

 

xsar@2008 thnxsssss

[kfk]

The fault doesnt have to be electrical.....the code refers to fuel pressure.....the question is.....does the low pressure pump work?.....is it working when you press the throttle pedal?......if its working is it supplying enough pressure?......if it hasnt enough pressure where is it loosing it?.....has the fuel filter been replaced recently?.........was it just the element or the complete housing?......is there fuel in the tank?........and then we get to electrical....... has it a good power supply and earth at the pump?.....if it says 12v on a multimeter try connecting a 21w bulb across it and see if it illuminates.......if there is no power at the pump check to see if there is power going in and out of the injection pump relay when running.......maybe supply a permenant supply to the pump and see if the cutting out is overcome.......

 

There are lots of things to be checked.....unfortunately, a code reader will only get you to the first stage of the diagnosis and a knowledge of electrical/injection systems is required to progress further.