low boost reading and high egts

[tony78]

hey all can anyone tell me why i would be getting low boost readings and high egt temps.i have a stock zd30.can anyone give me an idea of what readings you are getting from your zd30s.i am about to block the egr but dont yet have a dawes or needle valve.is this going to be a problem????

[97_gq_lwb]

Low boost will cause high egt's.
I'd look for leaks first.

[fishnsurf]

hi tony yeah as 97 said low boost will cause high EGT's...... i have been freaking out last few days watching mine ......... take a look at the tread i started BOOST PROBLEM? ended up being a old tired MAF

[tony78]

hey guyswont be that maf sensor as i only just replaced that 4 weeks ago.where should i be checking for leaks

[Sir Roofy]

Take your intercooler off and get it pressure tested for leaks,check your hoses for cracks
splits or clamps are loose
youll be able to get better boost readings once you set your dawes valve up

[tony78]

my boost gauge wont read anything when parked at home in the driveway.is this right or not???

[fishnsurf]

boost will only show when under load tony not in the drive way

[macca86]

boost should be around 15psi under full load and egt's vary I get 250 to 350 around town and on the high way 300 to 450 pending on load and hills

[tony78]

cheers guys.imonly getting around 7psi max at any one time and pyro gets up to 500 550 cruizing on the freeway.pyro has always been high since i fitted it

[macca86]

maybe insatll egr block and dawes needle valve set up as that normally increases boost drive it and tune turbo by adjusting vnt screw for mor or less boost and get a balance of psi and egt's simular to mine.

[tony78]

yeah cheers macca86.i will be ordering my dawes and needle valve this week then installing the lot a once.what would be causing such low boost though

[macca86]

someone may have fiddled with it prior to you getting the vehicle or your turbo is on the way out or dirty/faulty maf sensor intercooler leaks all lead to that. I'd been cleaning your maf or replacing it to be honest. ynot or chaz are the men to ask

[tony78]

done the maff a month ago macca.might get onto chaz or ynot i think.thanks heaps macca