graememk
|
| posted on 14/5/06 at 01:38 PM |
|
|
fuel pump probs
i scarped the original ecu from my donor (nissan 1.8 turbo injection) as it was way to complex and i have a ms off paul, before i changed it over
i'm sure my fuel pump used to run up to pressure then either slow down or cut out now id dosnt it just runs all the time...... is this correct
?
i know it needs to pump all the time but i feel sure it used to run then go quiet.
[Edited on 14/5/06 by graememk]
|
|
|
|
|
Danozeman
|
| posted on 14/5/06 at 02:27 PM |
|
|
It will pump when the cars running but should only run when the engine off to prime the fuel system then stop..
Have u got a leak in the fuel system somewhere or a dodgey relief valve on the fuel rail??
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
|
|
|
graememk
|
| posted on 14/5/06 at 06:23 PM |
|
|
so what tells the pump to stop pumping? is there a pressure switch in the submerged pump ?
|
|
|
paulf
|
| posted on 14/5/06 at 08:16 PM |
|
|
It should run for about 2 seconds after turning on the ignition and then stop until the engine is turned by the starter motor.This is controlled by
the megasquirt settings.
Paul.
quote:
Originally posted by graememk
so what tells the pump to stop pumping? is there a pressure switch in the submerged pump ?
|
|
|
zetec
|
| posted on 14/5/06 at 09:47 PM |
|
|
The pump must stop if the engine stops or you will be in trouble if you have a smack and the fuel line is damaged...lots of fuel being pumped out with
nowhere to go.
" I only registered to look at the pictures, now I'm stuck with this username for the rest of my life!"
|
|
|
.jpg)
