20XE in 1.0 Corsa; fuelling problem

[vinnie]

as some of you know ive been puting c20xe into my 1.0 12v

got it all in and it will only run if some one plugs and unplugs fuel pump constintly
so not sure wot it can be is it over fueling ?

[vinnie]

can any one help

[ccm640]

what fuel pump are you running mate? and a few people i no that have done this conversion have ran a live from the fuel pump to the ignition and that has sorted there problems hope that is some help to you

[astraab]

you havent taken the fuel pump relay out have you? if your just running a constant live to the pump then your over fueliing .. easy enough to attach a relay tho just 4 connectors . 1 battery/2 earth /3 to the fuel pump / 4 to the ecu...
simples

[woody333]

I dont fink havin the pump on constantly would make it overfuel as it has a fpr so asoon as it hits 2.5bar it will send the rest of the fuel back to the tank.
Have u had any fault codes come up??
Get someone to listen to the fuel pump wen ur crankin it over to see if its working(should here it buzzing) if not it could be ur fuel pump relay or even the crank sensor.
Hope this helps

[vinnie]

iam useing the 1.0 12v fule pump i was told that would be ok due to it being a mpi engine

no fault codes

ive taken the fpr off to look at it. it was a 3 bar one that is on it and looks like some one has pushed the middle bit down on it and the breather bit has a slight crak in it

could this be my problem

[ccm640]

i would try changing the pump mate i fitted a 1.8 eco into a corsa for a mate and had fuel problems changed the pump to a sport pump and problem was done. not too sure about fpr being cracked could be your problem also by leaking presure or letting air in

[vinnie]

i have a corsa gsi pump there i will change that then try get a hold of a fpr

thanks i will let you know how i get on

[woody333]

A vacume leak wont help but niether will a 1 litter pump mate, i think u need atleast a 1.4 16v pump i would of said