help! randomly cut power, but harsh

[magular]

kk, i just never done the maf solder before or know what to do precisely, i have a soldering gun n stuff, anyone have a pic post it up! and ill see what i can find. and thank you ^^^ for your message. ill try those 2 and i have a new coolant temp sensor, ill put that in, but i didnt know i had to reset my ecu or else it wont do anything. so ill do that too. should be getting somewhere after this.

( i hope )

[magular]

http://www.youtube.com/watch?v=V1ap7MSk5lo

i think this explains everything prefectly that i needed to know right? lol

[magular]

sucks i was trying to take maf apart to fix it, anddddd i screwed it all up, broke all the pins apart n stuff.

anyone know to take it appart?

[Bee-RSkyline]

the video is *one of the common problems with the MAFs.

To crack it open you need to remove the sealant around the square cover and pop it off.
There should be a copper cover on the inside, the boards and everything are in behind that.

[TheyKilledKenny]

Cool video, explains quite a bit.

[steveo1502]

So , I've had both these problems, with the maf it just wouldn't rev past 2500 or so but with the boost leak it would seem to run fine, would rev perfect in neutral but under load it wouldn't rev, and really smelled like gas, the maf was an easy fix, popped the cover off, soldered all the little connections( dont have a solder gun, just heated the tip of a screwdriver) put cover back on and silicone. Have had no problem since

[redsun]

hi magular.
is the car still on its original fuel pump?
is the car running on a standard ecu?
what is the base timing set at?
when is the last time the car got a fuel filter?
has the car exibited the problems you described on short runs or is it only when driving for a long time {more than 20 km}?
does the car exhibit these problems when it is cold or only when it is up to temperature?

[magular]

redsun

-fuel pump yes, but i plan on getting a new pump maybe next month if money allows ( walbo 255lph, 95$ stock in town )
-ecu is a Mines stage 1 ecu. but ive heard quite often that i should get a stock ecu...
-timing... i have no idea, i dont even know how to check or anything, but it has a new belt and the previous owner is the mechanic at the shop in town, and im assuming timing would of adjusted properly then but again, i dont know
-i changed fuel filter a month ago.
-it happens whenever, short or long doesnt matter, so both.
-and i think its so bad cold that i never dive it cold, i let it idle for 5 mins everyday, but recently it turned off while idling... twice one morning in the 5 mins. i was like, awesome.

[magular]

so i soldered my maf back together and poly-urathane it back together and my car starts! so i actually soldered it right, but who knows if i fixed the problem, maybe... and i put the new coolant temp sensor and reset the ecu so it notices the new sensor.

now im working on the 02 sensor. hope i can finally get it that stupid thing out and switched.

so if so, my car might run much mintier tomorrow lets hope. if not then im putting back in the stock coils and going to try n clean them with whatever that spray can is called.

and lets hope for better gas millage!

thanks for everyones help.

[magular]

k i stripped it, the 02. fml.

:'(

[GTRADDICT]

The treads or the nut part?

They. An always weld a new bung on there

[NismoS-tune]

FPR might have a boost leak. This happened to my gtir, when ever I'd boost, it would hit a wall so to say. After I reconnected the FPR, I was faster than R33 gtr's again

[magular]

sorry ive never asked before but whats FPR? lol. i should know.

but anyhow, i got to drive my car for 35 km around town, and NOT ONCE did it do what it usually does... so maybe i successfully soldered my maf and maybe thats what the problem i had all along... but ill be driving it about 80 km tomorrow, so that will give me a better idea of i legit fixed it.

[steveo1502]

Ya, was probably the maf, fpr is fuel pressure regulator

[magular]

ohh right k thanks, and now im at 160 km today, and not once did it do it. so i think its fixed. pretty hyped.

and the 02 i stripped the nut... so im going to bring it to a shop n say do it and ill pay. just so fed up with it all...

anyways thanks everyone. makes me so happy that i fixed my car with your help! such a nice feeling...

if it lags for a second tomorrow ill be soooo pissed haha. and hopefully the 02 will help with the fuel millage, and i just need to change 1 fuel line, kuz i think its still leaking. its coming along!

no as soon as its paid off, time for new coilovers and a crap load of body parts and wheels with a smooth running engine.

sounds like a good summer lol