sr20det Air Fuel Ratio going insane!

here is a clip of my wideband doing weird things usually when i step on the throttle. if anyone has knowledge about this problem feel free to email me at mig_l05@yahoo.com or post a comment :D

mods:
stock 370cc injectors
walbro 255 fuel pump
stock sr20 MAF
greddy BOV non-recirculated
greddy 20G TD-06 turbo
BC stage 2 cams 264
..... and other stuff my mind is in the gutter right now....

Category:

Autos & Vehicles

Tags:

• sr20det
• nissan 240sx
• silvia
• red top
• air fuel ratio
• AFR
• wideband
• rich
• lean

[kibbystar]

so lets see. your running stock injectors with a larger turbo and larger cams. no wonder it leans out your revving the car and after you let off the throttle its decel so the ecu doesn't dump fuel into the car. do you have any tuning done to the car? I have a stock turbo and cams and tuned my ecu and it made a world of difference,

[lamigra05]

@kibbystar - no tune to it yet. im waiting to install my 740cc injectors and my Apexi Power FC before i go tune it from boost logic here in austin. i just want the car to be in the best of shape before i go so theres no paying extra for stuff that needs to be done.

[Lobo240sx]

@lamigra05 Hey have you done your tune yet?? I got my 240 at Boost Logic. I got 550's with the Apexi Power FC D-Jetro. Awaiting Greddy Type RS flange for my new hot pipe.

[lamigra05]

@Lobo240sx naw, i just ended up gettin an enthalpy tuned ecu. i heard about boost logic. so i called them to get a tune from them but justin was never there. i guess he travels or something. but i plan on using the same engine management as you. car just runs rich right now.

[j00hz]

lobo240sx is on the right track. all it needs is 550cc(nismo) inj, power fc and a disco. mines the same setup on my 800kg ke70 corrolla :) w/s13 sr20det but im running a .64 turbine housing of more responce and a nistune. pushing 230kws(313hp) on 18psi w/stock cams.

[StinkOldDog]

Mine idles at 11 or so....way to rich..... and I can't seem to change it.... I have the Tomei Reytech ECU. Did you manage to tune it?

[Rickey240]

No boosting until you get it tuned in my opinion.