Is it farked

[Restless 33]

been driving my car for a while now and today i got in it and it didn't feel quite right when it ws hitting boost... kinda like it wasn't all there. the stock boost gage was reading normal. yesterday i hit high boost halfway round a corner the back came out a little but no dramas...jsut today the car felt really weird...did i **** it somehow? anyhting loose?? please help

[(B1) MR_fanny]

it would help if you actually tell us what exactly weird is.

[Restless 33]

sorry forgot...ok well the boost guage says it's boosting ...but it doesn't feel like it. normally i'd feel dumped in the seat a little more...basically it feels like theres less power. the boost guage also seemed to be showing it boosting higher sooner. i have only just started (last few days) revving it higher like to redline. lower RPM doesn't feel like theres much boost where as you used to be able to feel it more. does any of that make sence

[Restless 33]

the accelerater also feels like thers less resistance. like it feels alittle looser

[Cubes]

Not sure..

If it feels like its down on power get it on a dyno for a power run to check the afr's.

[Jordan]

Maybe your loosing boost(-ed air) from somewhere. Get someone to drive behind and look for black smoke coming out the exhaust when you floor it. Get your pipes and rubber intake hoses checked for leaks.

[Restless 33]

seems to have fixed itself...i gave it plenty of time to warm up today and then gave it some and it loved it...seemed to be running fine.

thanks for the replys though...mite jsut get it checked over anyway.

cheers

[BiZzReVhEad]

i give my car about 5- 10 mins to warm up before i goto work each day

(poor neighbours)

[(B1) MR_fanny]

could have been something as simple as the weather. cold day vs hot day.

[bmxwrx]

why don't you "hit it" hehe

[Restless 33]

lol i probably should...wel the problem is BACK

yup today it felt like i was driving an NA car jsut about hardly any boost at all.

i'm getting the o2 sensor changed soon...should i jsut let them look at it or is there something simple i can jsut check myself?

cheers guys

[paulr33]

the 02 wont affect how the car runs, it will simply affect how much fuel you burn up. you can simply unplug the 02 sensor and your car will just run mega rich. its on the dump pipe just after the heat shield. youll see a plug thingy tapped in the exhaust pipe with 3 wires, thats the 02 sensor. you can unplug and the ecu will just run rich and waste fuel. i cant tell what the problem is but it wont be the 02 sensor. what mods do you have to the car? without knowing anthing it sounds like boost / fuel cut from too much boost or some sort of retard with the stock ecu

[Restless 33]

yeah i know bout the o2 sensor not changing performance...jsut thought coz i'm sending it in to do that mite as well get boost chekced aswell. when it does boost it seems to go past the marker on the stock boost guage (the one without a number) seems to go clsoer to 7+

i've got 3' exhaust

pod filter

[paulr33]

ok the flat feeling is the ecu retarding timing and doing boost / fuel cuts

why your hitting or going near +7 i dont know but this will be the cause.

+7 on the guage is +700mmhg which is 14psi. about 11psi-12psi is the limit before the stocker ecu will cut in and do boost / fuel cut. when this happens you floor it, the car makes boost, normal noises but it feels flat and doesnt accel very hard. have you done any bleed valve changes, removed the stock solenoid or changed the tubing etc?

[Restless 33]

i've only had the car for about a month and havent changed anything myself...or had anything done to it. i'm new to modifying and jsut elarning so... it's come from japan the way it is (i'm first owner is ausrtalia) so i'm not sure wat it's got. any ideas or should i jsut get a general check when i get the o2 changed. could any of this other stuff be contributing to my bad economy aswell 250 per tank

[riceline]

make sure that your boost lines are hooked up corectly.

If these are not hooked up properly than you will be running massive boost and getting the boost cut.

[Restless 33]

don't mean to ask a stupid question...but where are they...? u mean the 2 black tubes running into the solenoid?

[drewecrome]

Hey mate i had the same problem, basically its wat had been just before by Paulr33. Your car is retarding the timing and therefore you feel that flat power band during the rev range at around about 4,500 to about 5,800 than it pulls like a rocket again. Well Basically its your shitty bleed valve this was the problem for me i had a turbo smart bleed valve and it would spike to 15psi no matter what the setting. My car was making 217.5 rwkws at 11 psi but the power curve was to the shit house, and basically a r33 with say 170rwkws would have eatten me for breakkie. I had the GCG hi flow but all the same the problem your having is to do with the boost spiking. And in my opinion get an electronic boost controller if you can afford it and maybe a dyno run just to make sure thats the problem. Does you car pull really hard from like 6,000 to redline?

[Restless 33]

it shows massive boost...it's jsut u can't feel the pull...i don't think it pulls after eitehr lol...pretty sure the blled valve is stock...i gotta find out wats actually on this car and wats been changed coz i don't know much ...yet..thanks for the replies anyway

[predator]

have a look on the LHS strut tower.. you should see a little cylinder bolted there with two small tubes going to it, and an electronic plug.. that is your boost solenoid. Just see whether that is hooked up.. and whether the hoses are actually going anywhere.

I assume you are talking R33 ??