Fuel Pump Resistor
Discussion
Hi, can someone conclusively tell me the purpose of the tiny little thumbnail sized black box that hangs on a pigtail wire at the Chimaera fuel pump?
The pigtail wire simply goes to ground at the fuel pump mounting stud on the chassis.
Is it a resistor for the fuel pump?
Or some sort of suppressor/ferrite to try to limit the fuel pump generating radio interference?
Thanks in advance, Dave.
The pigtail wire simply goes to ground at the fuel pump mounting stud on the chassis.
Is it a resistor for the fuel pump?
Or some sort of suppressor/ferrite to try to limit the fuel pump generating radio interference?
Thanks in advance, Dave.
Sardonicus said:
If you ask me it saves the contact life in the FP relay and suppresses voltage spikes/noise things like ECU's that take low voltage signals don't like noise the FP draws a sizeable chunk of juice starting up the radio suppression is just another bonus although not necessary if it was for radio suppression purposes only then the alternator heater motor & wiper motor would follow suit
Interesting Simon, spikes/noise you say Edited by Sardonicus on Saturday 20th July 21:42
So lets just say it wasn't connected
What symptoms might you expect; say if you had a Canems Dual Fuel ECU for example
Spikes/noise you say, very interesting
Sardonicus said:
or what its worth I would just fit a conventional points dizzy style condenser/cap back to the fuel pump + and Ground - chances are Dave it will make no difference but it wont do any harm either I use something like this because mine fell to pieces some time back too http://www.onlineautomotivesolutions.co.uk/82-93-n... the exact value is not important in this case IMO
Spot on Simon, thanks.Edited by Sardonicus on Saturday 20th July 22:22
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