bambis

Does it do it all the time after a certain speed? or just when accelerating hard? my BA doesnt do this.. Maybe your rear wheels are not balanced correctly? Maybe u are getting some axle tramp while under WOT? whats the tread like on your tires?

Well, remember when I said it was intermittant? It started doing it again today. Even while I had the solenoid bypassed.. it was definately less noticeable though, but im assuming that's because the boost wasnt getting as high without the controller. Booked in for thursday at CV, guess ill see what they have to say about it. It does have me a little worried that it might be the 4 speed though ><

Yup it seems that the turbo makes 12psi happily while bypassing the solenoid. So I guess its either the controller or the tune.. Thanks for all the advice guys, finally got this bug! cheers.

So this morning on the way to uni I used the economy tune from CV to see if I could notice a difference. It was exactely the same as it had been the day before. In fact by the time I was nearing uni (about 1 hour drive) it was getting so bad I couldnt even accelerate slowly in 4th gear. Cruise control 120kph, no worries at all, but as soon as I tried to accelerate it was sh*te ><. So it drove home a little better, after resting for 6 hours. Then once I got home I reflashed with my performance tune and went for a burn. The lag was almost gone, but it was still a little noticeable (I think) although I had 2 other passengers I think it was gone. What a pain in the arse. I booked the car in at CV next week after speaking to Jono. He thinks it may just be a tune issue so they can throw it on the dyno for me and check it out. I just hope that it is something that will reveal itself on a dyno... So bypassing the stock solenoid is like bypassing the boost controller? even if I disconnect this and do what u have suggested ETM im guessing that I would need to replace the solenoid? or the controller?

Ozzy, I really hope the clutch isnt going. But this afternoon I went for a drive to test it a bit. If I accelerated with WOT there was no issue. But if I was in 2nd gear using tiptronic doing any speed and went to WOT then it would happen. 1st isnt an issue. Ill try the reflash tmoz and update >< thanks guys

lol I never thought of that... I might have to try that, but then im not sure what might happen when I use a 10 or 8psi tune with the 12psi actuator, and would the CV tune even be stored on the box? or must it be stored in order for it to be transferred to the car? might need to try this and see what happens..

The problem arose a few weeks after I had it tuned to 270rwkw. That was the 1st tune the car had. After doing all the obvious things I listed I decided to replace the actuator and retune. I briefly explained the issue when the car was retuned and when I got it back it was gone. That was like 3-4 weeks ago. As strange as it seems, it started doing it again a couple days back. Ive also been thinking that I may have an exhaust leak, sounds a little like it. But im assuming that there is no way that could influence anything.

Hey buff, made a quick call this afternoon asking about overboost and they said that they may just need to touchup the tune. but as ive said, im not prepared to pay $500 for a retune. Although if it is a tune issue they probably wouldnt charge me anything to correct it.

Hey all, My BA 4 Spd Turbo has a slight problem. Each time I think ive got it, it comes back >< Driving along at any speed, in any temperature and plant it. The auto drops into 2nd and boost builds. Now it gets weird, as boost builds higher the engine revs seem to remain the same, or climb slowly. This occurs usually at mid range, say 3-4k, all I can hear is the turbo whine and it all sounds fine but there is no power, no acceleration. At this point I look at my mechanical boost gauge which says 20-22psi... Car is tuned for 15psi, and holds this pressure very well normally. If I just plant it from stop it will accelerate normally like there is no issue. If I am cruising along at 60kms and use tiptronic to change to 2nd and then WOT I get the issue.. This is an intermittant problem, it might not do it tomorrow. Car has done this since I first had it tuned. When I had the actuator replaced I had it retuned, and for a while it was fine and now its back again. Now this sounds an awful lot like the car is overboosting.. (do I have an highflow cat I dont know about?) Question is, if the ECU senses overboost will it limit fuel or retard spark like the traction control? If overboost is the culbrit what fixes it? Tune or controller? Im trying to understand what may be causing it. I cannot afford to pay $500 to have it diagnosed then pay $30 for something ive missed.. Here is a list of things ive done to the car to help maintenance and below in my sig you can see my mods. New Plugs (Genuine, gapped at CV) New Coils (Cheap knockoffs, although there might not have been anything wrong with the genuine ones I had for 6 months) Walbro 341 (This was the first thing I changed thinking the stock pump was the issue) Fuel Filter Actuator Any advice would be appreciated! thanks all.

Mine has been doing this for nearly a year now >< never really thought anything of it. Let me know how you go barnesy, would be interested in anything you find!

lolz! those rims do make it look like its floating..