Originally Posted by Stu @ M Developments
Originally Posted by Lambchop
haha i did explain it actually
its a guy i know well and not some random i spoke to at ford
when i said falls to zero im not actually sure its ever gone that far. when you can see the gauge slowly lose pressure you can back off throttle and it picks up to "normal" again. not like it falls instantly to complete zero. falls gradually.
I stand by my opinion, anyone who knows the system well will know the CTS cannot have any bearing whatsoever on fuel pressure.
When you say its never gone "That" far.... how far has it gone?
Std is 3.5bar, idle is nearer 3, anything with boost is 3.5bar+ the boost.
at idle the car is about 38psi or so. before fault occurs when car is hot the pressure could be 50/60psi on boost. when it drops it maybe falls to 20 maybe 15psi. when i see it fall i back off the throttle. it doesnt actually lose all pressure. sorry i worded it badly.