sr sputters around 2500rpms, more throttle it runs fine - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

sofo259 · 03-20-2008, 03:19 PM

since i got my car running last week, i havent really drove it until a few days ago, and i noticed while pulling through a shopping center around 2500rpms my car likes to sputter like it has a misfire..

any where above that, when i am accelerating it is fine, if im trying to go a steady speed, it sputters..

i am still running on the stock DOHC fuel pump (for now) an SR maf, and the engine is all stock..

i swapped out my MAF with a friends sr MAF, and it was still sputtering, swapped ECU, and it still sputtered..

we have narrowed it down to a fuel problem so far, but has anyone else had this problem ??

i am ordering my walbro, and a FPR tomorrow so hopefully that will fix the problem. Because i'm thinking that my stock pump isnt pumping enough fuel at a steady pace to keep it going but at higher RPMs its just fine..

fckin weird !!!

03-20-2008, 03:19 PM	#1
sofo259 Leaky Injector Join Date: Apr 2007 Location: georgia Posts: 95 Trader Rating: (0) Feedback Score: 0 reviews	sr sputters around 2500rpms, more throttle it runs fine since i got my car running last week, i havent really drove it until a few days ago, and i noticed while pulling through a shopping center around 2500rpms my car likes to sputter like it has a misfire.. any where above that, when i am accelerating it is fine, if im trying to go a steady speed, it sputters.. i am still running on the stock DOHC fuel pump (for now) an SR maf, and the engine is all stock.. i swapped out my MAF with a friends sr MAF, and it was still sputtering, swapped ECU, and it still sputtered.. we have narrowed it down to a fuel problem so far, but has anyone else had this problem ?? i am ordering my walbro, and a FPR tomorrow so hopefully that will fix the problem. Because i'm thinking that my stock pump isnt pumping enough fuel at a steady pace to keep it going but at higher RPMs its just fine.. fckin weird !!!