Helllpppp! lost power idles real bad

[MARKPRIOR]

after some spirited driving, changed into second plodding along and just no power idles real rough

still drives smooth considering makes .4 bar of boost but just dosnt pull through the revs

feels like a boost pipe off but cant see one, also if i take the passenger side IC pipe off i runs exactly the same


Please please not a rebuild was only done 6k ago by WGT

[memski]

Check the map sensor (n/s bulk head by the elbow) hasn\'t lost it\'s line.

[MARKPRIOR]

any pics or idea where that would be, car reaks of v-power to

[MARKPRIOR]

engine pic, has a t04z conversion with screamer and external wastegate, sounds like a massive blow aswell round the tubby

[Jit]

check your boost gauge on idle. Does it hold steady vacuum?

[MARKPRIOR]

two readings

on startup

Greddy profec b II - 12- 24 X100 kpa

power fc - 150 - 224 mmh

after a rev it does get steady

136mmh pfc
12-14 greddy


car proper hum\'s of petrol

[Jit]

does the gauge flicker about? or is the needle relatively steady

[MARKPRIOR]

no needle both digital

the are a little erratic IMHO but seem to settle after a rev of the engine, oh and engine seems to wobble about but probs with the poop idle

[m1tch]

Blown fuel injector? Or indeed stuck open fuel injector?

[MARKPRIOR]

Blown fuel injector? Or indeed stuck open fuel injector?

any idea how to diagnose?

[MARKPRIOR]

Bump

sick

[Rzla]

How does your car sound on idle?
Take a video and post it on youtube and paste the link here

[Prof]

If it\'s smelling of fuel that suggests you\'ve got a small fuel leak somewhere or one of the breathers for the injectors may have come off - small hoses that connect near the injector bases and return back to a vac source (on the fc they are off the back of the throttle body - but not sure about the FD.
 
The poor idle could be a MAP problem - what reading is it on idle - have you got a boost gauge in bar ?  You should see negative figures on idle, if it\'s reading  atmospheric then it\'s not seeing vacuum.

[MARKPRIOR]

will get a vid and post a link

whats the signs of rebuild just kinda preparing for the worst

[Prof]

Some classic signs are :
 

• wobbling boost gauge needle on idle
• Lumpy idle - sounds like a tractor, usually gets smoother with revs
• Pressurised coolant - or bubbles in the AST tank
• Water and oil mixing
• Hard to start cold
• White smoke in the exhaust that doesn\'t go after a few minutes

It\'s worth pulling the plugs and looking at what state they are in, you\'d be suprised how many times people have fixed poor running just replacing plugs.
 
Also, if you just take the bottom 2 plugs out for starters, and then remove the EGI fuse and crank the engine over - it won\'t start, but you can listen for even whooshing noises from the plug holes - if you don\'t get 3 even wooshes from each rotor then it sounds like a seal gone.
 
But check for a hose off on the MAP sensor and check the plugs before suspecting a rebuild.
 
:Thumbs-up