ENGINE TROUBLE MAJOR HELP NEEDED PLEASE

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Feb 14, 2009 | 11:52 AM

Mitch WRX

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From: North Wales

ENGINE TROUBLE MAJOR HELP NEEDED PLEASE

Ok i posted a thread re my sti v3 misbehavin,she is hunting on idle an a bit rough up to 50mph,from 50mph she is hesitating/tryin to cut out,it aint the maf sensor,it aint any of the sensors an it aint the fuel pump nor the idle control valve HOWEVER this is a tricky one,pressure through the manifold is VERY low,supposed to be anywhere within 18-22" mine is coming in at 6",any ideas??? fuel is 1/2 bar high but thats ok,she is runnin 3 litres of fuel per minute,she is currently doin my head in,is there anyone out there that has come across this at all,please please i want my baby back,any help any ideas!!!!!!!!!!!
everthin else is runnin as it should be.....
MITCH

PLASE EMAIL ME PRIVATLEY
mitchcoxqualters@aol.com

Feb 14, 2009 | 04:04 PM

merlin24

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From: RM Performance

A healthy engine should have approx. -17.5 " of vac - are you sure you havent got an air leak on the inlet manifold eg vac hose perished/split or brake servo hose connection leaking ??

Mick