why my 33 stuffed under boost/load????

[knackaz]

have some major issue with my gtst. am struggling to even get up a hill without a cruising run up at it at present. once the boost needs to raise the car just labours/surges with no power. does this even on flat surfaces if trying to boost as well. any help appreciated.

could it be the afm , considiering it runs ok under normal driving conditions&just like a bag o shit under load?

yeah fuel pump is next thing, have hardwired as per the way this thread has stated, but no noticeable difference really. if the pump is stuffed will it still able to be pumpin fuel readily enough, can get the car going fine like probably about 140km/h on the straight, but as soonas try for thaT LITTLE BIT MORE, SEE THE BOOST GAUGE CREEP OFF ZERO, THEN IT JUST DOESNT SEEM TO KNOW WHATS GOING ON AND JUST COUGHS and splutters, the boost will go then drop, go then drop etc, but with no power sort of thinmg. is hard to xplain

[Robo's]

Has it just starting happening?

[knackaz]

car has been off the road following a rebuild, but the problem was there previously unfortunately. but i had only had the car a few weeks

[NZM.031]

could be coilpacks. does it miss at all when up in the revs?? what about idle, does it idle a bit rough at times?? if you wind the boost down does it help??

if you get stuck, call hunter thomas automotive 49681362 and speak to paul thomas, he is the man.

cheers

Linton

[Nightman]

Does it miss? does the boost actually rise? or does it just go up a little bit?

[Sambo33]

I know someone who had a similar problem, turned out one injector was faulty and the rest were all blocked up with rubbish

[The Dan]

Will most probably be the AFM. Try to get another one to plug in temporarily. ie Borrow from a friend or try to talk an importer into lending you one for ten minutes and you'll buy one if that's the prob. They usually do this for ya.

While you're doing that, check your spark plugs. What condition are they in? Showing signs of running lean or rich? if not then AFM if lean then possibly fuel pump or injector, if rich then possibly plugs or coil packs.

Hope this helps.

[benm]

Something quick and cheap you could try is tape up your coilpacks with electrical tape and then take it for a spin. If it's better you know it is coil related, if it doesn't make a difference then you know the problem could be elsewhere.