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Adrian McGuire
TryHard
Queensland
soarer 2.5 turbo

Posts: 111
Reg: 12-2010

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 Sunday, February 13, 2011 - 08:36 pm, by:  Adrian McGuire (Adro) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
hey guys,
ive noticed lately when i give my car a gut full she would miss under boost so i went and got a new set of iridium plug thinking the plugs were just getting old but it still happening so i gave the ECU a reset and it still happening. i found if i gradually bring the revs up it seems to be alot better (only missing a small amount) does it sound like time for some new coils??
any advice would be great.
Adrian
Brett Harrison
DieHard
QLD
JZZ30

Posts: 542
Reg: 09-2005

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 Sunday, February 13, 2011 - 10:52 pm, by:  Brett Harrison (Bretto) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
sounds like coils,
check for cracks etc,
Good preventative maintenance either way, should be around 400 for a new set of those red type, oem are a fair bit more.
Adrian McGuire
TryHard
Queensland
soarer 2.5 turbo

Posts: 112
Reg: 12-2010

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 Monday, February 14, 2011 - 07:55 am, by:  Adrian McGuire (Adro) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
if the Gap size on the plugs were to far apart could it cause this? i think they are gapped to .8 at the moment. i could bring it back to .7 maybe??
Brett Harrison
DieHard
QLD
JZZ30

Posts: 543
Reg: 09-2005

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 Monday, February 14, 2011 - 09:10 am, by:  Brett Harrison (Bretto) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
Don't reset the iridiums.

If you want to play around with plug gaps, just reset some copper BKR, you can try 0.7mm.
But Ive found this is just a band aid fix for weak spark, new coils and .8mm will be fine.
Adrian McGuire
TryHard
Queensland
soarer 2.5 turbo

Posts: 114
Reg: 12-2010

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 Monday, February 14, 2011 - 09:29 am, by:  Adrian McGuire (Adro) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
for the moment until i get around to installing the new coils i just wound my boost back to standard (9psi( and it seems to be alot better. ill post up once ive got the new coils in, thanks for your help brett.
Daniel Clarke
Goo Roo
NSW
TT 2.5L 6 cylinder

Posts: 6124
Reg: 03-2006

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 Monday, February 14, 2011 - 08:19 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)
SOunds like you need new coils .

Nothing wrong with regapping Iridiums , Ive been doing it for years without any issue . Just use a Vice to close the gap down :-)
Adrian McGuire
TryHard
Queensland
soarer 2.5 turbo

Posts: 116
Reg: 12-2010

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 Monday, February 14, 2011 - 09:34 pm, by:  Adrian McGuire (Adro) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
After abit of running around today she all came good but I will stick the new coils in next weekend anyway just to be sure

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