Help! Boost Wont Hold

[ruffryder]

im currently running 11psi boost on my r32.

when i hammer the car, the boost, regardless of what gear i am on, will quickly hit 11psi on the boost gauge.

... but as the revs slowly creep past around the 4000-5000 rpm mark, the boost starts to slowly fall, and i can hear 'popping' noises from my exhaust.

from this point onwards, torque is lost and as the revs go up, car feels jerky n no torque.

just hear popping noises n car is kinda 'jerky' with the pops.

i thought it was the fuel pump, but i just got an 040 installed and still the problem remains

any thoughts guys?

[Savage Bliss]

Coilpacks. If it's popping under full load and loosing boost I think that's most likely what it's going to be. Does it doing driving off boost or even under 4000 grand? Give it a try.

Or... long shot, problem with your actuator maybe. Check the seals.

Could even be clutch, although, there shouldn't be any reason for the pop in that case.

I think coilpacks is your best bet mate. Common problem:D

Edited December 5, 2005 by Savage Bliss

[ruffryder]

yeh i did some research n found that this is quite a common problem thanks.

the engine also seems to stall when i rev it high n let let off the throttle, n clutch in. the rev drops all the way down n stalls the car. this only happens after i kick in boost, n commonly occurs when im going up a hill.

is this linked to the coil pack too?

[Savage Bliss]

Could be. Try replacing the coils then see if it stilll happens. But I'm thinking O2 sensor mate. Once again, all these problems which need the occasional ironing out. Best done when you first get the car, but all minor gliches which are common place among aging imports like ours. Good Luck!

[GTshortie]

Have you checked your Spark Plugs & Gapping sounds like its misfire under load.

Its Cheaper to change the spark plugs just make sure you check those first before you start investing in coil overs

cheers,

[ruffryder]

yeh i have put 6 new iridium spark plugs in. i might play around with the gap to 0.8

or maybe should try checking the coils for cracks at the front

thanks guys

[MYSTR33]

the stalling saga, i assume u got an ATMO BOV?

if so then u need a plumb back BOV to stop the stalling

[ruffryder]

hrmm... i got no BOV!! was thinking of putting a stock one.

surely this has got ya thinking