4 Psi Only ??!!

[OMRAN]

hey guys ....

i had this problem for two days now ...

the boost is only 4 psi ... !! its some times reach 5 psi ..

it happend twice befor ... but it was for 5-10 minutes and then it gos ...without shuting down the car .. !!

now its there for two days ... i donno ... :hellpisd:

any help plzzz !!

i did ecu check ..(55) every thing is ok .. (just in case)

mods .. pod , exust and splitfire coil packs with iridium ix plugs ... only

car: 1998 R34 GTT

helpppppppppppppppppppppppppppppppppppp !!

[OMRAN]

oh forgot to say ... am running stock boost ... 7 psi

[Bill]

Make sure that the pipe between the turbo and motor is not loose.

[OMRAN]

bill ... if its loose .. i will get full boost .. man . ..

i think its solenoid valve ... but not really sure .. i'll check it tomorro ..

thanx for the help thou ,,

strang that no one replyes here .. ???

[OMRAN]

Make sure that the pipe between the turbo and motor is not loose.

ops .. didnt read it well ...

sorry ... :uh-huh:

and no its not loose mate ,,, thanxx again ..

[xRHETTx]

Do you have an aftermarket boost gauge? If not, do you realise the stock gauge is not in psi, its in x100mmHg? 4-5 is about normal then.

[OMRAN]

rhett .... lol .... i know mate ...

and of course i have a boost gauge ...

[Fazt_R33]

yo guys, im havin the same prob, only reads 3-4 on ther stock gaUGE, even after 4500RPM??

[Fazt_R33]

also does anyone noe how to install a Hybrid Stage 3 boost controller???? the manuals that come with it are very general and not very clear... any help???

[OMRAN]

yesterday i checked the solenoid ... its dead i think .. any way .. i'v changed it with small valve i made .. to give 7-8 psi and it works perfect .. (temprory) tell i find new solenoid valve ...

by the way .. the r34 actuator opens the weastgate at 4 psi .. the valve i made bleeds some air out ..and reduce the pressure on the actuator (if any body intrested .. i can post some pic )

fazt-r33 : ... as rhett said ... on the stock gauge its normal to show 3-4 ... any way check u'r solenoid valve

[Fazt_R33]

thax omran... but is i normal to show the same after 4500rpm... i thoug ist meant to hit 7 on the stock gauge.......

also i got a stage 3 hydrid boost controller... with solonoid and all the works.. jst can frekn figure it out.. the diagrams are to shtty and 2 general......

apexi bov for sale.... ne1 interested... 2nd hand with the gtst adaptor... fits 32,33 & 34... interested...?

[The Dan]

have you checked for leaks in vacuum hoses to the guage. Either that or the valve is nil op

[xRHETTx]

but is i normal to show the same after 4500rpm... i thoug ist meant to hit 7 on the stock gauge.......

QUOTE]

If it hits 7x100mmHg on the stock gauge that means you are running about 14-15psi i think, or close to double the stock boost. You know, there are different units for pressure around, psi is just a more common unit. bar is probably used second most.

[maxforce]

replace the solenoid with a bleed vavle and see

[maxforce]

are you using iridiums in them try to replace them with standard NGK spark plugs bcpr7es and gap it at 0.78 i think the tips are too small and cant handle under high boost if not check ya air flow meter