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33bits
16 Valve
Joined: 23 May 2009
Posts: 1067
Location: Clevedon. North Somerset
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 Posted: Thu Aug 27, 2009 10:47 pm Post subject: Won't go till warm! any ideas please? |
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Hi guys, I have a 33 16v here & it has a quirk that I have come across before in a 33 but never really found the cause. If you start it up from cold & drive it straight away it really doesnt want to go, it splutters, hesitates, pops, gives symtoms of fuel starvation, wont idle properly, you get the idea. However if you let it idle for just 1 or 2 minutes before driving it, all is fine, in fact it goes damn well! I've changed the odvious parts in some hope of stumbling across the cause, but nothing has worked yet. Any ideas people?
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155 sportpack
33 16v Sportwagon
33 Permanent 4
33 16v (for sale)
156 JTS sportwagon
contact me for any 33 parts. Alex, 07896-327708
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Ben_nz
Gold Cloverleaf
Joined: 30 Sep 2003
Posts: 575
Location: Auckland, New Zealand
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| Posted: Thu Aug 27, 2009 11:25 pm Post subject: |
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Remove the carburettors and put the fuel injection back on! 
(both my cars do that, the dodgy Webers much worse than the rebuilt Dellortos)
(the worst car I ever had for that had the single carb motor, and I put the problem down to the manifold design ruining fuel atomisation)
(listen to it try to idle, let alone drive! www.axys.co.nz/ben/alfa33/partscar.mp3)
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"Now, all that is left to do ... is wait that something else brokens, to fix up again!" |
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BigAl
P4
Joined: 06 May 2003
Posts: 2990
Location: U.K Surrey
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| Posted: Fri Aug 28, 2009 12:34 am Post subject: |
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hey Alex
I would start with the CTS output when cold and then... and then... and then... try running with the lambda sensor disconnected. Thats if you havent already tried that and assuming that it is injection
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x2 33 16v
pictures http://www.alfa-pages.co.uk/viewtopic.php?t=5203 |
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33bits
16 Valve
Joined: 23 May 2009
Posts: 1067
Location: Clevedon. North Somerset
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| Posted: Fri Aug 28, 2009 7:02 pm Post subject: |
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It is 16v injection, no carbs, it doesnt have a cat either although it still has a llambda sensor. It is a k reg so it did originally have a cat system, been de catted & gone through 2 mot's since.
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155 sportpack
33 16v Sportwagon
33 Permanent 4
33 16v (for sale)
156 JTS sportwagon
contact me for any 33 parts. Alex, 07896-327708
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aforalfa
Alfasud
Joined: 05 Jun 2007
Posts: 77
Location: under someone elses alfa i expect :roll:
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| Posted: Sun Aug 30, 2009 12:38 am Post subject: |
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| cold start switch? maybe acting up until running on lambda if resistance is off. |
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lee16v
16 Valve
Joined: 29 Jun 2005
Posts: 1429
Location: Devon, UK
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| Posted: Tue Sep 01, 2009 11:59 am Post subject: |
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| Alex, If you get to the bottom of this let me know. Mine's been like it for 6 years and I've never got to the bottom of it and that's with replacing most engine parts over the years. |
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Oggie
Green Cloverleaf
Joined: 06 Mar 2008
Posts: 811
Location: Whitehill
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| Posted: Tue Sep 01, 2009 7:31 pm Post subject: |
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Could it be caused by condensation in the fuel when you switch the car off and let it cool down perhaps, or does it have the same symptoms when you start the car after a run when it hasn't had time to cool down?.
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Oggie
Green Cloverleaf
Joined: 06 Mar 2008
Posts: 811
Location: Whitehill
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| Posted: Tue Sep 01, 2009 7:32 pm Post subject: |
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And is there any simularity in brand fuels you use?. i.e. shell , total etc,etc.
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33bits
16 Valve
Joined: 23 May 2009
Posts: 1067
Location: Clevedon. North Somerset
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| Posted: Tue Sep 01, 2009 10:43 pm Post subject: |
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Glad to hear i'm not the only one with this prob Lee.
Good point Iain, no it only does it after its been left for at least a day, if i drive it, then stop for a few hours it isnt too bad. Fuel condensation is summit i never thought of, you may have hit on an idea there young man!
(When you planning on popping over?)
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155 sportpack
33 16v Sportwagon
33 Permanent 4
33 16v (for sale)
156 JTS sportwagon
contact me for any 33 parts. Alex, 07896-327708
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Oggie
Green Cloverleaf
Joined: 06 Mar 2008
Posts: 811
Location: Whitehill
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| Posted: Wed Sep 02, 2009 7:46 pm Post subject: |
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Saturday afternoon if your about!.
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33bits
16 Valve
Joined: 23 May 2009
Posts: 1067
Location: Clevedon. North Somerset
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| Posted: Wed Sep 02, 2009 10:16 pm Post subject: |
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Yeah i shall be here from midday onwards, i've got to take the Zonda to Wales for an MOT in the morning then i'll be home, i'm picking up the sw fri afternoon so i'll prob be cleaning it up when you arrive, see you sat.
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155 sportpack
33 16v Sportwagon
33 Permanent 4
33 16v (for sale)
156 JTS sportwagon
contact me for any 33 parts. Alex, 07896-327708
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lee16v
16 Valve
Joined: 29 Jun 2005
Posts: 1429
Location: Devon, UK
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| Posted: Thu Sep 03, 2009 9:02 am Post subject: |
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| 33bits wrote: |
| i've got to take the Zonda to Wales for an MOT |
What a chore Alex  |
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33bits
16 Valve
Joined: 23 May 2009
Posts: 1067
Location: Clevedon. North Somerset
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| Posted: Thu Sep 03, 2009 5:38 pm Post subject: |
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I know it's terrible isn't it, today i collected an Aston DB9, then took a 911 turbo for a service. I love my job!!! 
_________________
155 sportpack
33 16v Sportwagon
33 Permanent 4
33 16v (for sale)
156 JTS sportwagon
contact me for any 33 parts. Alex, 07896-327708
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