I have the safc2 and the lm1 with the xd1 gauge. Yesterday i did the seafoam process. my car smoked for 10 minutes but anyways, back on topic. i was running this morning to come to work and i noticed my a/f at about 5k goes lean to 14.1. 4800 is at 13.1 then jumps to 14.0 at 5k then back to 13.1 at 5300.
I don't really now if the seafoam is causing this which i may have a little liquid on the gas tank from yesterday or there is something else wrong. i tried adding fuel at 5k about 7+ and it only went to 13.9. I tried adding fuel at the rest of the powerband and everywhere gets fuel to about 12.3 ratio but that specific spot(5k) goes to only 13.9.
what do you guys think? is the liquid? is there something wrong? problably the dirt coming out of the gas tank got stuck on the injector?

 

Was the wideband in when you seafoam'd?
Try to recalibrate the sensor.

 

is reading right on the rest, but i'll try that. thanks

 

BTW what car and mods?

 

altima 3.5 with bolt ons plus cams. i'm the tester for the deluboz cams. ts ecu also.

 

Try tuning with the stock ECU and see if it makes a difference.
But first, how many miles has it been since you "foamed"

 

like 50 miles. my main concern is some dirt on the injectors. i had 3/4 of fuel tank. so the mix shouldn't be that strong. but i might be wrong.
i find strange that only does it at that specific rpm.

 

Drive a few hundred miles or give it hell for a lil bit longer and see if it wears off. All this started after seafoam right?

 

well i noticed it after seafoam. but last week it was between 13.1-13.4 the whole powerband.

 

You prob just need to drive it off... Keep driving, do a few WOT runs. It should go back to normal.

 

well, it didn't go back to normal. still does the same thing after a refill of gas and 2 days of abuse. the safc2 shows the air percentage normally increasing. I did a wideband sensor calibration and still shows the same increase of air at the same 5200 rpms. where should i start? how can i check this? leak in the exhaust? why only at 5200 rpms?