R33 S1 Running Lean And Slight Hesitation...

[r33canada]

hey everyone.

Im trying to figure out if this is a fuel problem or not.

while driving around if i am just cruising and accelerate i notice my afrs bounce from stoich up to 16-17 and then back to stoich, if i let off it fluctuates to 13 and back up.

when i shift from first to second. first is fine but shifting into second there is a hesitation at low rpms.

also, when im in wot, my afrs actually stay around 14 and as it approaches redline it starts to get richer.

my car is fairly stock.

pod filter,

split dump, 3" all the way back to the cannon with decat.

plugs at .8 gap.

emanage ultimate running only boost cut to prevent R&R

stock actuator now, was overboosting with r32 actuator.

only reason i have the emanage there was because it back fired like no tomorrow at wot over 4K rpm and going into R&R.

iv noticed, recently that while driving my car smells like fuel. (while windows are down) but i figured this as to do with there being no more cat. cause it started at the same time.

there are no leaks anywhere. just had timing belt and waterpump usual 100k service and replaced fuel filter aswell.

i have on order a walbro pump cause i figured i should swap out the stocker anyway.

tell me what you guys think. thanks!

-William

[scotty nm35]

Which wideband are you running? It sounds like it needs calibration as it's reading high. Can you compare it against another, or get it on the dyno?

[r33canada]

i have it partially sorted. the emanage was doing something strange even though i didnt have it correcting any maps. its currently disconnected.

i did find to code on the ecu. one of ignition and one for maf. so i wiped them and they havent popped back up yet. thinking it was all to do with the emanage.

only thing left was the slight hesitation and the fact the car goes slightly lean first when i accelerate. but through the rev range its back to properly rich.