Boost Problems

[sky-017]

i previously ran a GFB bleed valve @ 11psi. car ran fine etc... i recently installed a TURBOTECH boost controller... now i installed it and tried adjusting my boost and the car keeps dumping boost when you put your foot down around 4000 + rpm... iv adjusted it over 30 times - and i have drilled a biger hole(now 1.5mm) in the previouse hole in it like people have said - because some were manufactured with and with out this hole - which can cause pressure getting stuck between the boost controller and the actuator.. so iv done that

yet i still have the same problem..

now i was talking to a friend and he sais it could be misfiring because this controller is far better than the gfb and is making stronger boost which is causing this missfiring?

?? he told me i need to gap the spark plugs , which i was told - it would fix this problem ?? he said the current setting is 0.8 and should be 0.6? .... i would of searched but i dont know what im looking for... he also mentioned something about tapping it on the concrete to get the correct size....

any help would be gladly appreciated.

[tek_01]

make sure it is connected up properly, sorry cant help u with how to because im still new to the turbo scene but yeah i had a similar problem and it wasnt installed correctly.

usually misfiring happens when your coilpacks are getting old or your running too much boost. That being said most people are running 0.8mm gap (standard is 1.1mm... which im running at with 14psi and standard coilpacks and i have no misfire so im lucky... knock on wood lol)

you tap the plug on the concrete to get the gap down and measure it with a feeler gauge.

also check the spring and ball inside the controller and see if anything suspicious is going on there

sorry cant be much more help

Edited March 8, 2007 by tek_01

[sky-017]

yeah i done some searching last night... there is a remedy on this apparently which i will try out this weekend...

most coil packs get hair line cracks in them , which causes the spark to escape.. most people have taped them up and it fixes the problem so its been said.. i will attempt this , this weekend , and if not i will try to gap the spark plugs.

[Gazee]

most coil packs get hair line cracks in them , which causes the spark to escape.. most people have taped them up and it fixes the problem so its been said.. i will attempt this , this weekend , and if not i will try to gap the spark plugs.

ka-ching! your on the money right there... (more or less) lol

tape works... good electrical tape... aroldite... umm some people even reakon painting em ?

but it works

[sky-017]

yeah im definitly going to fix this , this weekend. i was totally excited to install this new mbc.. and i am quite happy with it - the turbotech is the go!

might even try if i can find some plastic sealer , or something , and use tape.. cause the car is runing like shit.. i dont want this problem ever..

[-_-StRyDeR-_-]

ka-ching! your on the money right there... (more or less) lol

tape works... good electrical tape... aroldite... umm some people even reakon painting em ?

but it works

yeh painting them with good quality nail polish apparently :S just clear.. not colourd haha

CJ

[grippy]

Remove your coil pack cover plate and start your car in the dark and rev it up. If the coil packs are leaking you will see the blue electrics all over the coil packs. This obviously means they are leaking.

Nail polish is the go. I had it painted on a coil on a previous car and it lasted for 2 years.

Coloured or clear, doesn't matter. It's a great insulator.

I would double check the installation of your bleed valve also. Sometimes different brands connect in a different way. Read the instructions carefully to make sure it's all sweet.

[MBS206]

Mis firing VS Boost leak

There's a HUGE difference. Mis firing you can feel it jolting the car each time it misses.

Boost bleeding off just makes the car feel like the amount of power it has is slowly dropping.