Red top hesitation @ 3000 rpm

[iloveturbos]

Red top
s14 turbo , lines , meagan o2 house , new oem far o2 sensor , blitz dp , blitz nur spec ex , meagan pullys , aem wide-band , aem tru boost ..blitz filter and greddy front mount ..new ngk plugs (from sentra ser at local auto parts store ) all inter. Piping is tight. All of the harness is tight too

problem

when driving casual and i start too go into boost at like 3000 rpm there is a little hesitation then it comes on strong this is in all gears i dont hear no mis-fire or det. Just a little sluggish any help would b great thanks

[yokotavia]

whats your air fuel ratios at 3000rpms?

[iloveturbos]

the wide band is all over the place ...at idle stopped (like at a red light)
wide band will go too full rich NO NUMBERS JUST RED LIGHTS..
while driving casual pretty much stays in 14.1 to 15.8 around there but if i throttle lift while driving (any gear) it will go to rich..
full boost (12 psi ) all gears it stays in the range of 13.1 - 16.8
its weird ...when i pulled the plugs the tips were whiteish and the porcelin at the lower part of the plug was redish like they were running real hot ..i can post pics of the plugs later thanks

[yokotavia]

when the numbers go into the RED on an AEM wideband gauge, that means your running LEAN. not rich.

and 13.1-16.8 is hella lean for a sr...

richin your shizzy up via new tune or at least an safc.

[yokotavia]

also if you take your foot off the gas pedal, of course the guage will read lean. thats normal.

your running LEAN NOT RICH. hope this helps

[zaquanh]

but what about the hesitation i have all stock stuff right now and mine does this too ?

[renegade_ewok]

Is the car tuned for the T28? :squint:

[yokotavia]

im not sure abotu you zaquanh.

but im 99.99% sure the hesitation on his car is it running out of fuel (running lean) for a second at 3000rpm

[zaquanh]

im not sure abotu you zaquanh.

but im 99.99% sure the hesitation on his car is it running out of fuel (running lean) for a second at 3000rpm

yea thats what i thought about mine so i pulled the fuel pump and found i had the s13 sohc , so i put a prelude one on and it ran better but it still hesitates but will pull very hard , its wierd i cant think of what it is ,

mabye my timing is a lil off , it idles a little wierd but idk

maf is good fuel pump is good lol

[yokotavia]

try getting a fuel pump meant for your car or a walbro or GTR fuel pump.

[Sileighty_85]

i had a similar issue also, Mine went away when I found the two grounds on the #4 IM runner were loose & corroded, cleaned and tighted them, and it went away,
not sure if it'll be the same for you though.

[zaquanh]

yea ill check the grounds