Hi,

on my cossie 4*4, i had fit a fule pressure gauge and a egt gauge. the exhaust sender is fit in place of the lambda sensor on the turbo because i didn't want to drill the turbo .

yesterday, i had fit light blue injectors and new chip.

i would like to know if i need to increase the fuel pressure and what is the best value for exhaust temp that i should have ?

the temp is very low so i think that i am too rich

 

it all depends on alot of things but as a rule you should have 3.5 bar at idel with vacume pipe off

 

thanks, i have this value

but, as i had put bigger injectors, i was thinking that i need to increase the pressure

 

is the pump a uprated item as the flow is waht you realy want to look out for

 

the pump is a bosch 044

thanks

 

set it to 3.5 bar idel with vacume pipe off and then take to a tunner or mapper .off the shelf chips for grays or light blues are no good

 

i know for live mapping, but i leave in France

not many tuner who are doing the live mapping

 

Fuel pressure doesn't necessarily need to be increased - that's why we go up in size, with injectors that flow more fuel.

BUT, you need to know what the chip was set for - from the mapper who created the chip.