Thread: stumbling at low rpm

i have a p11 and just finished a ve swap into. it idles,runs excellent besides mainly when its cold(sometimes when its at run temp as well) in low rpms "driving" when easing into the throttle it hesitates/kicks then when i get on it it clears up? any ideas? also it doesnt seem to have as much power compared to my buddies b14 sentra ve

fyi...
check engine light is on for
bank 1 sensor 1
bank 1 sensor 2 (O2sensor)???? weird both bank 1
also throwing a cank ange sensor

might have something to do with it maybe?

yeah those codes have something to di with it

ok the stumbling at low throttle is bugging me i noticed its really doggy as well till i put my foot in it

check your tps?

definitely fix those codes or turn them off in your tune if you can

Well it says.
.55 clsed throttle
and about 3.6 open throttle
its right in the ball park

i also have this issue but i had it with the de engine too, when i replaced it with a vvl the problem followed alone. I'm thinking something to do with MAF but not 100% sure. i've gotten used to it but if you find anything out please share.

well the problem is when its cold so im guessing its in the cold tune? anything that helps the motor while its cold so tps,coolant temp sensor,cold idle,fuel,etc... im investigating the problem right now

if its a jwt ecu, its a known issue with the tune

From experiance, its prob lean, had a VE doing this to me the other day, gave it some more fuel and its smooth

thank you all for the advice i have been going over a few things but nothing yet i have also developed a uneven idle every once and a while @ idle it will fluctuate between about 2-300 rpm
sounds like the maf to me any ideas? i tried cleaning it but didnt help to much