Stock Boost Gauge Won't Go Past 0

[aquariuz6]

I just got my car back recently, noticed a few things wrong with it.

Feels like its struggling and on 5 cylinders.

Before someone says coilpack it struggles throughout the rev range, low and high rpm.

I have gotten it back from the panelbeater since I got a respray. I also got them to install my fmic and highflow turbo.

Once I got it back I noticed that my turbotech boost controller was missing its spring, they must have opened it and lost it.

I have the usual mods like full 3" exhaust, front/dump, remapped ecu.

What is the worst thing that could happen if the boost controllers spring is missing?

I have removed it and put it back to the stock setup, still that didn't solve the struggling engine problem.

And when the boost controller was on or even the stock setup, on the boost guage it wont even go above 0. Its like its restricted from going past it because when you drive it, the gauge will quickly go to 0 then stop there.

Does anyone have any ideas?

The last resort I want to do is to give it to a specialist and all he would probably do is to go through the whole list of a 100k service to figureout the problem. Well thats what the panelbeater told me to do anyways, It might just need a tune

[WazR32GTSt]

ok this is most likely a very simple fix

firstly, with the boost controller having no spring it essentialyl is working as stock. the spring is what makesthe boost what it is!

now for the rough runnign and no boost.. options as to what it is:

- intercooler hose loose / clamp on too loose

- intercooler hose with a crack in it

- AFM giving problems

what to do?

first, try cleaning the inside of the AFM with a few sprays of brake cleaner

next, take a torch and look over the car at the intercooler clamps to make sure all the hoses are on right. check in the front bar too and thay are hard to see.. most likely that this is the problem...

best of luck,

Warren

[Godzilla32]

Firstly if a coilpack fails completely can miss anywhere in the rev range. Is the engine receiving boost? The Gauge will do that when the turbo is making no boost or its not getting to the engine.

[aquariuz6]

ok this is most likely a very simple fix

firstly, with the boost controller having no spring it essentialyl is working as stock. the spring is what makesthe boost what it is!

now for the rough runnign and no boost.. options as to what it is:

- intercooler hose loose / clamp on too loose

- intercooler hose with a crack in it

- AFM giving problems

what to do?

first, try cleaning the inside of the AFM with a few sprays of brake cleaner

next, take a torch and look over the car at the intercooler clamps to make sure all the hoses are on right. check in the front bar too and thay are hard to see.. most likely that this is the problem...

best of luck,

Warren

Thanks Warren,

I am waiting on another turbotech boost controller. I was wondering since I'm just missing the spring could I just get a spring from the hardware store or is there special tensions to the turbotech ones?

I will have a look at the intercooler and fmic hoses soon.

I'll get back to you once I check.

Thanks, mate

[Godzilla32]

If you replaced the boost controller with the stock one and you still had the problem then clearly its not the boost controller. Firstly like warren said check all the intercooler piping connections. It sounds to me that your engine is not receiving boost. Without boost a gauge will read as you described.

[aquariuz6]

If you replaced the boost controller with the stock one and you still had the problem then clearly its not the boost controller. Firstly like warren said check all the intercooler piping connections. It sounds to me that your engine is not receiving boost. Without boost a gauge will read as you described.

Hey So Godzilla32,

I just checked the intercooler piping, I just tightened the hoses to its limit. There seems to be no cracks on the hoses either so I guess it could be the afm?

I only checked by revving it, but now I get that fluttering sound which is normal, even though I have the stock setup and panel filter, most likely the intercooler just made it louder.

Although it sounds all normal, does this still mean that the engine isn't getting boost?

Only revved it(no driving) the boost gauge still didn't go past 0 mark. I know only way to check though is to drive it because it shouldn't go over 0 in the 1st place on neutral right?

[WazR32GTSt]

in neutral there is no load on the engine, so no boost

if you think its fixed the problem you have to take it for a drive...

cheers,

Warren

[aquariuz6]

Yea I'll try it tomorrow when I get a chance.

Hopefully problem solved.

Also how would I know if my afm is working or not?

[tigr33]

make sure that the AFM's connected up, i forgot it once and it was bearly running, ideally u should take it back to the ppl that dont the cooler and turbo, n say what the hell have you done, n get them to fix it

[Godzilla32]

make sure that the AFM's connected up, i forgot it once and it was bearly running, ideally u should take it back to the ppl that dont the cooler and turbo, n say what the hell have you done, n get them to fix it

I was thinking this too. I wouldnt have driven very far before doing a u-turn...

[aquariuz6]

I did and they told me that it needs a tune.

Pretty hopeless info to me