ok..... my car just started doing this all of the sudden..... it idles at between -20-30 lbs of vacuum....... and when i give it a little gas, it goes to -10........its not until i floor it that it goes into boost.....and then it wont go past 5 lbs.....

before it would idle at -10-20 lbs....and when id give a little gas it would stay right at 0, and when id give a little more gas it would go to like 2-3 lbs of boost......and flooring it would take it to between 7-10lbs....... what could be the problem??? bad turbo??

 

Firstly, 20-30psi of vacuum is physically impossible, so I guess you mean 20-30inHg, and even that's highly unlikely. It sounds like your boost gauge might be broken and is reading low across the whole scale, like the needle slipped on the pivot. What does the stock boost gauge say?

 

lol, bet you never thought youd have to rely on the stock guage.

 

I bet the issue is that your boost gauge is dying.

 

might be the guage, but i doubt it....... BUT... intermittantly it will still run fine..... for a few minutes, while its cold...then it starts it all over again... so i dont think its the guage......and the car is very slow when it starts acting up...and the blow off valve is almost silent.....so there is a problem,

oh, and sorry nz convert....i didnt know the "inHg" lingo....lol....still learning..... and the stock guage used to go like 3/4 of the way up under boost...now it goes about a 1/4 way up........

 

i know i shouldnt bump..but im hoping to have my car running by sevenstock..so any help would be apriciated

 

dont know if this is possible, but if your air filter really badly clogged?

 

filter is pretty new....... but thats a possibility i havnt tried yet

 

How does the car drive? Is it normal?

Anything below 0 PSI of boost is refered to as Inches (IN) of Mercury (HG). So, InHG.

This is the unit of measurement for vacuum.

There is no way your car is idling at 20-30" of HG.

 

no, it isnt driving normal...its driving really really bad.......it dies, and when it does stay running, its very rough.......and theres practically no boost at all..... and the boost guage reads around 20-30hg, especially right after i floor it, and let off, it goes to around that...... it never did that before.....it would never go beyond like, 10-15hg

 

My 323 idles at -25

 

You're changing your storey. You said it was idling at 20-30inHg, which is damn near impossible for even a brand new engine. However under decel you're supposed to see more than 20inHg vacuum because the engine is revving much higher. That's perfectly normal and I'd be worried if you didn't see that.

I bet it did, unless there was something wrong with the gauge or the engine...

 

i found the problem and fixed it....... it was my apex'i blow off valve....... it was sticking open which caused a bad vacuum leak, and little to no boost....... so to anyone who is having symptoms like mine....check the blow off valve...... i would have never thought to check it, but my friend figured why not....and shure as **** , ir was...

 

thank you everyone for helping!

 

im having idle problems also and i have an apexi bov i was just curious is you replaced your apexi with the stock abv or did you actually fix the bov? and if so how? please im i would like to talk to you more about this.

 

having a tii = idle problems.

 

just get a better BOV then a apexi

 

are you serious? im gonna say your joking due to the smiley.


if your tii has idle problems getting a better bov will not fix it... hell $1000 bov will not fix it.

UNLESS your bov is leaking... if thats the case then adjust your bov. If its broken or worn out then get a new one.


odds are your rough idle is due to a vaccume leak some where else or a cracked tid.

Check the normal stuff first.

 

i was joking buddy

 

this is a tech section not the lounge.

"joking" could cause a noob to spend money on something not needed, and still have a fugged up idle.

i know you were joking. keep it in the lounge. Some people dont know the answer... so they could very easily believe that your joke could be serious and be the answer to thier problem.

its no biggie. i just figured id clear it up for the noobs. Im here to return the help i was given over the years.