Does the fuel pressure stay the same even if the engine has just been started, (ie cold start) or should the reading be taken on a warm engine?

 

Do you have a vairiable rate fuel pump ?

 

errrr dunno mate lol

its a standard ERST fuel pump with EFi management if that helps...

I plumbed in my fuel pressure gauge and its reading just over 4 bar but it needs to be 2.5 - 3 bar but I didn't want to adjust it down without knowing if it might have been 4 just for cold start etc

 

anyone?

 

Try a different gague, my first post was a little tongue in cheek lol

 

I haven't got a different gauge, its taken me ages to fit this one

shows how much knowledge I have when I don't even know you were taking the piss Tony lol

up for anyone else?

 

thanks for your help

 

warm/cold should make no difference. its done on vacuum on the regulator thats all. if its 4bar then it way too high!

can i confirm that you're deffo talking about EFI not MFI/KE-JET (as that works differently pressure-wise)

 

yep EFi mate...

I'll go knock it down to standard then, cheers Jim

Sounds like someone has tweaked the fuel pressure like Stu said not to do when it was all in the Fiesta lol

 

adjusted, running just under 3bar at idle now

 

no, its 3 bar with the vac pipe unplugged. should drop to about 2.5ISH when you plug it back in (as the vacuum drops the fuel pressure)

 

How do you know that gague is reading correct ?

You taking the readings before or after the regulator ?

Sorry for post 1

 

heloooooo

 

sorry for the late reply I've been at work

Well AFAIK the gauge is reading right, its brand new...

I'm taking the reading before the regulator

Tony no worries mate lol

 

mine runs at 2.5 bar on idle and nearly 5bar at full boost