#1: Hesitant to Start when cold BUT.. [-SOLVED-] Author: V9977, Location: Athens, GreecePosted: Sat Nov 05, 2011 8:37 am ---- Model is 2007 1.4i at 50000Km.
When it's cold it fumbles at start-up (like the revs drop slightly then pick-up) or the revs will drop
so much that it reaches zero and will not start.
Another go is then required and it will start, albeit with some hesitation (revs drop).
Pedal is not pressed and have a look my previous thread here regarding this: www.206info.co.uk/Foru...art=0.html
Before people start yelling ICV, it has a fully electric intake and accelerator pedal and therefore no ICV to my knowledge.
Checked with a decent diagnostics tool and engine temp sensor seems to be fine, agreeing with the Air-intake temp sensor when all is cold.
Sparks, Air filter, oil, everything servicable is new and mint.
Any help would be very much appreciated because it seems to be slowly getting worse
(weather colder? Don't know, it was doing it in the summer with 35 C)
Cheers.
Update: For solution go to page 3. Last edited by V9977 on Fri Nov 11, 2011 10:11 am; edited 2 times in total
#2: Re: Hesitant to Start when cold BUT.. Author: Lee, Location: EnglandPosted: Sat Nov 05, 2011 8:45 am ---- Might seem a bit obvious but you tested the battery and stater motor?
#3: Re: Hesitant to Start when cold BUT.. Author: V9977, Location: Athens, GreecePosted: Sat Nov 05, 2011 8:46 am ----
Lee wrote:
Might seem a bit obvious but you tested the battery and stater motor?
They are fine. (New VARTA Blue and alternator is fine.)
Earth straps OK too.
#4: Re: Hesitant to Start when cold BUT.. Author: Seabook, Posted: Sat Nov 05, 2011 9:03 am ---- Is it only happen when cold or first start in the day?
#5: Re: Hesitant to Start when cold BUT.. Author: Daeva, Location: Athens, GreecePosted: Sat Nov 05, 2011 9:12 am ---- Hello,
please give us a hand with this, as it's an issue.
Any help will be appreciated.
#6: Re: Hesitant to Start when cold BUT.. Author: V9977, Location: Athens, GreecePosted: Sat Nov 05, 2011 9:18 am ----
Seabook wrote:
Is it only happen when cold or first start in the day?
When the engine hasn't run for a good amount of time.
Could be doing it in the afternoon even though was running in the morning.
So when cold I think.
#7: Re: Hesitant to Start when cold BUT.. Author: Seabook, Posted: Sat Nov 05, 2011 9:20 am ----
V9977 wrote:
Seabook wrote:
Is it only happen when cold or first start in the day?
When the engine hasn't run for a good amount of time.
Could be doing it in the afternoon even though was running in the morning.
So when cold I think.
by any chances there is air in the fuel line so that it doesn't start/ idle properly?
#8: Re: Hesitant to Start when cold BUT.. Author: V9977, Location: Athens, GreecePosted: Sat Nov 05, 2011 9:23 am ----
Seabook wrote:
V9977 wrote:
Seabook wrote:
Is it only happen when cold or first start in the day?
When the engine hasn't run for a good amount of time.
Could be doing it in the afternoon even though was running in the morning.
So when cold I think.
by any chances there is air in the fuel line so that it doesn't start/ idle properly?
Idles fine once running, including warm-up period (1000 rpm) etc.
It's like a mixture issue OR butterfly not opening enough?
#9: Re: Hesitant to Start when cold BUT.. Author: Lee, Location: EnglandPosted: Sat Nov 05, 2011 9:33 am ---- Fuel pressure?
Tried turning to ignition, waiting 5 seconds and then cranking?
#10: Re: Hesitant to Start when cold BUT.. Author: Seabook, Posted: Sat Nov 05, 2011 9:36 am ---- did it misfire at all?
#11: Re: Hesitant to Start when cold BUT.. Author: V9977, Location: Athens, GreecePosted: Sat Nov 05, 2011 9:37 am ----
Lee wrote:
Fuel pressure?
Tried turning to ignition, waiting 5 seconds and then cranking?
Hmm. Not tried.
Any pointers to look at with the diagnostics tool in 'Live data' mode?
#12: Re: Hesitant to Start when cold BUT.. Author: V9977, Location: Athens, GreecePosted: Sat Nov 05, 2011 9:37 am ----
Seabook wrote:
did it misfire at all?
Nope. No codes either.
Why?
#13: Re: Hesitant to Start when cold BUT.. Author: Seabook, Posted: Sat Nov 05, 2011 9:44 am ----
V9977 wrote:
Seabook wrote:
did it misfire at all?
Nope. No codes either.
Why?
i have a feeling that the engine is running lean (not enough fuel); and it will be more problematic during cold started.
hot engine are less affected but it might misfire depends on how lean is the mixture.
and in fact, it didn't cut out once the engine is running after a while i would have though there is nothing wrong with the throttle body. Last edited by Seabook on Sat Nov 05, 2011 9:45 am; edited 1 time in total
#14: Re: Hesitant to Start when cold BUT.. Author: macj, Location: EssexPosted: Sat Nov 05, 2011 9:44 am ---- The fact that it is fine when warm suggests it is a fuelling issue, My thoughts are that it is not adding the extra choke fuel on initial start up. When you say the ETS is ok do you mean you have replaced it or just that there are no fault codes?
I would clean out your throttle body, checking for corrosion or deposits. If the answer to the above question is "no codes" then get a new ETS. I would imagine this is not hard to start from hot?
#15: Re: Hesitant to Start when cold BUT.. Author: Lee, Location: EnglandPosted: Sat Nov 05, 2011 9:47 am ---- Fuel pressure 3.5bar + or - 0.5bar
We are not responsible for comments posted by our users, as they are the property of the poster
Interactive software released under GNU GPL,
Code Credits,
Privacy Policy
Membership:
Latest: 
New Today: 0
New Yesterday: 1
Overall: 17127
Online Now [54]:
Visitors: 53
Members: 0
Staff Online Now:
Page Views:
General
