I just replace my injectors with a set that has been cleaned and balanced and matching spray pattern...

After the install it bogging bad (sounded like it was running on 3cyl.) for about 30sec straight....(I was saying to myself... **** I did something wrong... but lucky me the idle evened out and ran perfect after the fuel pressure got back up)...

the good new is all my bogging is gone and my idle is perfect now...

but my problem is if I first start my car after not driving it for maybe 8+ hours it boggs (bog bog bog 3 times <2sec) on initial start up, but after that and after warm up its all fine and if I restart with engine warm it doesn't do it)............. what should I check it's like my 1 or 2 injector are just waking up....

My setup :
B17/ctr pistons, vafc, fpr at @45psi, ngk 7's, new dizzy....etc

 

ttt

 

maybe the fuel pump is going out

 

check your fuel regulator.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg6hatch3 &raquo;</TD></TR><TR><TD CLASS="quote">check your fuel regulator.</TD></TR></TABLE>

where is this regulator located...

what should my fuel pressure be at when I prime it for the first time....mines showing around 42psi before I start it...

 

my LS/vtec does the same, but after warm up, it runs beautifully.

 

try raising the idle set screw. i've heard that it is because the engine is running rich and it does that on cold starts.

 

i haven't tried this yet but check out "theoldone.com" they have an article about releaving fuel pressure at idle and low rpm's