#1
6th Gear Member
Join Date: Oct 2006
Location: Bramladesh!!
Posts: 4,387
Car: 328IS, SC400, IS300
HELP!!!! INSTALLED M3 EXHAUST ON 328is E36...car is idleing rough now
hey peeps.
got a good deal on a m3 exhaust for my 1997 e36 328is. Had a huge hole in the supersprint........
anyways, installed and now car runs fine EXCEPT.....every now and than engine sputters and misfires on idle.....you can see the rpm dropping and hear a sputter from teh exhaust.
any ideas????????/
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#2
Stance is Gay.
Join Date: Jun 2007
Location: Ancaster
Posts: 3,309
Car: '06 325i
I'd start by checking for vacuum leaks. Then check the coils and plugs.
#3
4th Gear Member
Join Date: Feb 2009
Location: Canada
Posts: 858
Car: E46
This was immediately after the swap?
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E46
#4
6th Gear Member
Join Date: Oct 2006
Location: Bramladesh!!
Posts: 4,387
Car: 328IS, SC400, IS300
^^yes sir!
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#5
4th Gear Member
Join Date: Feb 2009
Location: Canada
Posts: 858
Car: E46
What exactly did you swap out, cat back or full exhaust?
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#6
Classifieds Moderator
Join Date: Apr 2003
Location: T.Dot
Posts: 8,748
Car: e36 m3
Did you Unplug the vacuum line that goes to the stock 328is exhaust?
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#7
6th Gear Member
Join Date: Oct 2006
Location: Bramladesh!!
Posts: 4,387
Car: 328IS, SC400, IS300
Were is the vacum line located?
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#8
2nd Gear Member
Join Date: May 2008
Location: east of Peterborough
Posts: 227
Car: 96 328is (SOLD)
I think he is talking about the vaccum line that goes to the dashpot on the muffler to control idle noise. This shouldn't make a difference.
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#9
JUICY J CAN'T
Join Date: Jun 2004
Location: T.
Posts: 16,967
Car: S54 titties
^^it could actually, but since he had a supersprint before its likely already plugged.
#10
6th Gear Member
Join Date: Oct 2006
Location: Bramladesh!!
Posts: 4,387
Car: 328IS, SC400, IS300
no just swapped the muffler
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#11
2nd Gear Member
Join Date: Mar 2010
Location: Toronto
Posts: 160
Car: e36 M3
Sounds unrelated to exhaust, an exhaust leak is very unlikely the cause of a drive ability issue. Like doogee said, coils, plugs, vacuum leak.
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#12
4th Gear Member
Join Date: Feb 2009
Location: Canada
Posts: 858
Car: E46
Just the muffler? That is why I asked what exactly you swapped.
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#13
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Join Date: May 2004
Location: Milton
Posts: 3,157
Car: '06 TL, '07 Z4
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The list starts here: Depo headlights w 8000k hid's,/CCFL's , smoked tails, corners and BBS RC041's/042's, Vogtland junior cup kit.
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