i fixed one thing now its another

i replaced my old stock f/r with a blox f/r + gauge, i didnt increase my f-pressure tell it dropped one day, then after it was raised next day i was running rich--how is it that it went from being normal to rich!!, so i put it back to normal witch is 32-with f/r hose on, 44 with hose off,

i been writing down times of the day where it drops,

Lastnight around 9:00pm - fuel pressure was 32PSI when engine rev'ed it goes to about 45PSI

This morning 4:45 - fuel pressure was 35PSI when engine rev'ed it goes to about 46PSI or so 'tad rich

On my brake at work 7:10am : fuel pressure was 32PSI etc


On my lunch 9:00 fuel pressure 29PSI , note it was 80 degrees out side as the day got hotter the fuel pressure dropped and i was using the A/C in neutral


My last brake at work with a/c on and 80 degrees out side it was 25PSI when rev'd it would jump to 35ish 'tad lean....

i noticed before i turned car on i checked pressure and it had pressure it wasnt at 0. it was nearly 21PSI with car off..for a couple hours


car drives fine, its not running rich no more i drove rich for 4 days worst experiance . gas went fast af.

I want to put a replacement stock F/r but not tell i figure out why my fuel pressure is dropping?


what should i look in to? is this normal

 

............

 

went to move my car right now 3:49 pm, hot out side car starts up fine everytime but the fuel pressure it at 18!!! and when rev'ed it goes to about 28 at most...

wwhy am i loosing fuel pressure?

 

Go back to the oem set up.
leave that other stuff alone.

 

i' have buddies running aftermarket F/R. im running stock Fuel pressure . this shouldn't be my problem


i'll buy another stock F/R+ replace fuel filter see what happens

really disappointing

 

went out side. after car sitting for several hours in the shade...the psi before car started was at 35 so i started her up i noticed it had that cold idle so i knew she was fully cooled off....im starting to think my fuel pressure drops the more i use my car.....

 

Fuel pressure regulator or other associated parts could be temperature sensitive. It could operate properly when cold but fail when it warms up.

 

You're using a Blox part. They're barely a step above the no-name parts you get off eBay. Put the OEM FPR back on. Is there any particular reason you felt the need to go with an aftermarket part? Something about your car you haven't told us?

 

I have to completely agree. Thats why i say go back to OEM and leave that crap alone.

 

Im going back to the stock f/r, + replacing fuel filter....and some injector cleaner....

the reason i switched to the blox f/r , my idle was horriable i thought my f/r was going out on me. so when i switched over i also chipped my ecu with a b20b map, i was using a 1.8 LS ecu previously.

it helped alot my idle is now solid,


but now that i can actually see my fuel pressure . i noticed its not solid. it drops and runs lean when it wants like when i use my a/c and car is under alot of load

 

Half your problem is using things that arent meant to be used together.
B20 map on What?
Wasnt this car an abortion from the start?
I recall your earlier posts..... you had problems galore.

 

Also check the vacuum hose to the FPR.

 

lol this guy...i never regret this swap for one second. i have a stock motor that pulls hard i could of have the choice of building a SOHC 'pistons,rods etc but i chose this route, if this motor blows im going LS. but i dont think it would blow JUST saying, i dont redline my motor

i had idle problems, if thats what you meant by "galore" my idle problem was solved when i got a chipped p28 ecu. there for it no longer idles like ****.

i fixed my fuel pressure problem the FPR was broken...couldnt be tightened so there for it was loosing pressure