Definitely not running right???

[jrhdominos]

Okay, first off , we are talking about a 92 GSR with a JDM SiR II B16a swap. Now I know b16s are gutless, but something isnt right here. It runs perfect and pulls good from 1k-4.5k-5k when its COLD right after I crank it, like in the morning, but once its warm it acts like it has NO power from 1k-4.5-5k, then VTEC and it rides out. It has a dead spot it seems where it doesnt seem like its pulling. I have trouble sometimes just pulling out in traffic. and when I crank it when its cold it jumps to 3k really quick a couple times, then drops to around 2k until it warms up and settles around 900 rpms. Im also burning a LOT of gas. $20 dollars gets me around 85-100 miles tops. At $4.06 a gallon thats 17 on the low side and 20 on the high side. If anyone has any advice or has experienced similar symptoms input would be grealty appreciated. Thanks in advance.

 

[jrhdominos]

Even though no one has posted, I ended up doing a bit more research, and I want to say its the oxygen sensor. Ill be changing it Monday, will definately keep yall posted just in case someone has the same issues.

 

[jrhdominos]

Ive actually had the o2 sensor replaced a couple of days now, as well as the fuel filter....still wondering what could be causing this...nobody has had the same experience??? I can hardly drive up hills in 5th gear below 3.5k-4k..pretty pathetic. I dont really want to just throw parts at it...but Im at a standstill with this right now...also I am running a brand new walbro 190lph...keep in mind I had this problem before I changed out the fuel pump.