SR lagging at WOT...?

bearsblack

Drifter & 4um Junkie
Driver
sr20 lagging, losing power, not going fast at WOT. it looses power, and i can actually feel it regain once i lift my foot off the throttle. is this a fuel problem? maybe fuel pressure? please help :)
 
i am hating sr's more and more everyday. hahahaha good luck dood we all have these problems and i agree with tps...
 
stupid ? but are u running premium gas? and how old is the gas? i know when i got my car from my sis she used to run cheap gas and it was old cuz she blew her ka and it sat for 8 months before i got it and swapped it, had a similar problem, lost power under boost, drained the gas and put some premium plus octane booster, it ran fine
 
yea, im putting my money on it being fuel pump. i took it in and out 3 times today, swapping others in, and just end up putting mine back in. but if kinda stops pumping if it gets knocked, then comes back on once its bumped again.. i wouldnt think theyre all like this correct? and basically, here my deal..

still havent checked boost leak, but i was told to check base ignition timing. whats that? lol and when i unplug my fan from my fuel pump fuse location, the motor idles up a bit, and sorta "cleans up".. and this is because im running my fuel pump directly from acc power at ign because it didnt work when i turned the key on originally. soo.. besides my fuel fan drawing power.. it bogs real hard at heavy acceleration, especially after 2500, or always at wot. and when im just cruising at like 2500 or higher, it will randomly bog, like i can watch the vacuum go from 10/11 down to 1, and then it comes back up to 10/11 after a few seconds. the way it breaks up, im thinking its something fuel related.. any suggestions?

and, i put my stock pump in and it made it worse, way worse. but i also pumps VERY softly, is that normal?
 
MAF sensor. if u have a buddy that has one like u, swap them to check out and if not pleae repeat posts previous to mine =-)
 
alright, yea, ive def got to check my tps. and i unplugged my maf and it made it worse, so does that mean it not that? lol
 
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