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Peter Callegari
Tinkerer
Victoria
Soarer TT

Posts: 8
Reg: 12-2008

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Saturday, December 27, 2008 - 01:02 pm, by:  Peter Callegari (Peterc_69) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

hey guys. I got a problem with my soarer TT stalling. Most of the time it's fine but every now and then (atleast a couple of times a week) when i start up my baby she sounds like she's struggling to idle. she'll keep doing it until eventually it stalls, but if i rev it a little to try get the revs up she stalls straight away. When i go to start it up again i hold the revs at about 2500rpm and it just dies and cuts out. It's as if the accelerator stops working and the revs just drop from 2500 to nothing even while i'm accelerating. This happens 3 or 4 times and then eventually it starts normally. Has anyone got any ideas because it's driving me absolutely insane. Especially when i'm trying to leave a car park, start reversing, and she stalls, then it takes me 3 or 4 times to get it going again. I swear some people would think i'm an absolute retard stalling an auto. I've taken it to a mechanic, he fixed up the tuning and checked it out. He said it sounds like a fuel pump problem but he had a look at it and said that the fuel pump seems to be fine. Also, it used to have a kill switch installed. i removed it because i though this was why it was stalling. could that have had anything to do with it? Please help. I cant' stand it. I love everything about my soarer, EXCEPT FOR THIS
Luke Streat
TryHard
WA
Soarer TT

Posts: 159
Reg: 09-2008

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Saturday, December 27, 2008 - 02:00 pm, by:  Luke Streat (Streatracer) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Sounds like it could possibly be your fuel pump ecu? Theres a bypass you can do but im not sure how, there is a few posts on how to do it but you might have to search them out.
Peter Callegari
Tinkerer
Victoria
Soarer TT

Posts: 10
Reg: 12-2008

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Saturday, December 27, 2008 - 02:03 pm, by:  Peter Callegari (Peterc_69) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

i pulled out the main ecu as it said in the new soarer owner section and that did nothing. You wouldn't have any clue what section i'd find out about resetting the fuel pump ecu
Luke Streat
TryHard
WA
Soarer TT

Posts: 163
Reg: 09-2008

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Saturday, December 27, 2008 - 02:57 pm, by:  Luke Streat (Streatracer) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I searched for ages but unfortunately this was best I could find
http://www.planetsoarer.com/IAC/iac.htm hope that helps.
Your not looking to reset the fuel pump ecu, you actually want to bypass it completely. If this fixes the problem then you know the ecu is faulty and you can replace it. apparently running without the fuel pump ecu damages your main ecu eventually.
Peter Callegari
Tinkerer
Victoria
Soarer TT

Posts: 11
Reg: 12-2008

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Saturday, December 27, 2008 - 10:20 pm, by:  Peter Callegari (Peterc_69) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

that helped heaps mate. I appreciate it. I guess i'll fiddle around with it tomorrow and see if it is faulty and replace it. Thanks again
Peter Callegari
Tinkerer
Victoria
Soarer TT

Posts: 16
Reg: 12-2008

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Tuesday, December 30, 2008 - 12:07 am, by:  Peter Callegari (Peterc_69) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

problem seems to be solved Luke. Hasn't stalled for a couple of days now which is a good sign. I guess i'll give it a week or so to make sure that was definitely the problem before i replace the ecu. Thanks again for your help. It's a big relief. Fingers crossed it stays that way. Cheers
Luke Streat
TryHard
WA
Soarer TT

Posts: 180
Reg: 09-2008

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Tuesday, December 30, 2008 - 12:11 am, by:  Luke Streat (Streatracer) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Excellent mate glad you got a good result :-) fingers crossed it stays fixed.
Got any advice for fixing a melted piston for $7.50 and half a pack of chewing gum? hahahaha
Kane Chan
TryHard
QC
TT

Posts: 103
Reg: 11-2008

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Wednesday, April 15, 2009 - 09:49 am, by:  Kane Chan (Fumoffu) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I had the same problem with mine today.. it was so sudden.. what was the solution for this?
Peter Callegari
Tinkerer
Victoria
Soarer TT

Posts: 49
Reg: 12-2008

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Wednesday, April 15, 2009 - 11:42 am, by:  Peter Callegari (Peterc_69) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Fuel pump ecu. I just bridged the Fp and B slots in the diagnostics port in the engine bay with a paper clip. Works a charm. I haven't had a problem since i did it in december last year. I got a new ecu but am yet to install it. Good Luck with it
Shane Haverkamp
TryHard
nsw
soarer TT

Posts: 167
Reg: 10-2007

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Wednesday, April 15, 2009 - 05:26 pm, by:  Shane Haverkamp (Havabeer) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

i thought that bridging thing was only ment to be done sparingly. as it keeps the fuel pump running and can cook the pump its self due to heat?

correct me if i'm wrong
Luke Burt
TryHard
Queensland
5spd TT

Posts: 380
Reg: 08-2007

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Thursday, April 16, 2009 - 02:42 pm, by:  Luke Burt (Burt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

It means the pump runs at 12V all the time rather than a hi/low setting controlled by the ECU.

I don't think it will cook the pump, just about all fuel pumps run at a constant voltage level, Except ours.
Peter Callegari
Tinkerer
Victoria
Soarer TT

Posts: 51
Reg: 12-2008

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Friday, April 17, 2009 - 06:40 pm, by:  Peter Callegari (Peterc_69) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

as far as i know what luke has said is correct. i spoke to my mechanic about it aswell and he said that for obvious reasons it's better to replace the ecu and have the fuel pump running between a hi/low setting, as that is what it's supposed to do in a soarer, but most cars, pretty much all as old as a soarer don't have ecu's to control voltage, they just run at 12v
Daniel Clarke
Goo Roo
NSW
TT 2.5L 6 cylinder

Posts: 4888
Reg: 03-2006

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Friday, April 17, 2009 - 07:06 pm, by:  Daniel Clarke (Dieseltrain) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

If it runs at 12v it wont make sweet all difference.. However Bypassing and bridging it means the Fuel pump will be on, and in the case of an accident it would still be running and cause a dangerous situation .

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