hi, right on my ecos the fuel pump is by passed i hav a switch so i can turn it off, prob is when going to fire car up i turn on the pump the car starts then starts to die so i turn of the pump and it stays started for awhile and if i leave the pump on it WILL die out could it be that the fuel pipes are connected wrong as i had the car totally stripped all summer only been built up in last 2 months? any help be great people, thanks hugh

 

check the fuel pressure, it may be high.

the other option is the fuelling is massivly rich, so when you shut the pump off the pressure in the line drops, so the car runs ok ish untill it runs out of fuel in the line

the feed out of your reg is the return line

 

hi james, yes the car is over fuelling big time iv had to get a new L8 green label one this time my old one was red label, do i need to get a lamaba sensor, see im not sure if i hav the correct vacum pipe on the 3 bar map sensor either could that cause it to over fuell badly, cheers hugh ps James could you pm me your email address, as iv'e still not sorted that thanks

 

what was up with the other ecu?

the red and green label L8s are exactly the same either can run closed loop depending on the chip fitted.

the rich running is your fault, its not fuel pump related at all

 

james the old red L8 just wont work for me think it might be down to the inject driver would it be worth fixing? off hand James would you have any idea's of my the cause's of over fuelling? probably loads of things? hugh

 

fuel pressure,

chip matching engine/injector type

sensor fault/operation

loads of posibilities

 

anyone know which vacum pipe i need to use on the map sensor? cheers hugh

 

any from the plenum, makes no odds which

 

thanks James the one on it at the min is not coming from the inlet might have something to do with it over fuelling?

 

yes! wheres it from lol

if its not reading vaccum at idle it will assume its comming onto boost lol

 

lol its coming from a box in the left hand inner wing lol, and i don't need a lamaba snsor if i don't have closed loop,one more thing James could i use 55lb siemen's injectors on a chip that is meant for greens? thanks for your help james, hugh

 

maybe the carbon canister,

the car will run on the 55s with a greens chip but you will not be able to use it or run it for long periods like it, as the fuelling will be miles out.

if you want a 55s chip give us a ring. we do cracking 55s packages

you dont need a lambda, but its well worth while for the price of a sensor, especialy if you are getting a new chip