My car sputters on deceleration when the rpm is below 3500.

Setup is B16/chipped p28/ original b16 p&h injectors/ b&m fpr @50 psi (hose off), 43 psi (idle).

The injectors are 14 years old and the b&m fpr is a restriction because i have a walbro 255. Fuel pressure is 50 psi (hose off) 43 psi (hose on)

Will new injectors and an aem fpr solve this problem?

 

bump

 

At those settings,you are prolly running ver rich below 3500 rpms and that is what is causing your misfire. Rich misfiring could be corrected with AEM EMS by subtracting the apropriate amount of fuel. So yes..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PyroProblem &raquo;</TD></TR><TR><TD CLASS="quote">At those settings,you are prolly running ver rich below 3500 rpms and that is what is causing your misfire. Rich misfiring could be corrected with AEM EMS by subtracting the apropriate amount of fuel. So yes..</TD></TR></TABLE>

subtracted some fuel....by changing fuel pressure regulator and lowering fuel pressure.

My car still sputters on deceleration at any rpm. If i take my foot of the gas between 4k-7k it sounds like low frequency bangs, between 3k-4k it rumbles, between 1k-3k it sounds like i'm driving a wrx. No idle or acceleration problems. No codes either.

Setup is B16/chipped p28/ gsr injectors/ aem fpr @46 psi (hose off), 38 psi (idle).

I've checked ignition timing and it's set to 16 btdc. Dizzy, cap, rotor are new.

What else should i check? TIA