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s1 cold starting advice

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Old Jul 19, 2008 | 08:12 PM
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Default s1 cold starting advice

my s1


only recently aquired, only just learnt the knack but cold startings a pain
if turn key it will fire not quite idle and die and a pain to restart


if i just touch the throttle a inch or so and turn the key it fires within a second or so but i have to keep the revs up for a good minute or so before it will think iif idling etc, if i dont get it rght and it stalls its a pain to restart, if i get out touch the flap on the metering unit down a few mill and get someone to turn key it fires straight away


but as i say i know the car and can now start it perfectly, but i want it to fire and idle on the key not mess about for a good minute or so


any advice?

Last edited by lardypants; Jul 19, 2008 at 08:13 PM.
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Old Jul 19, 2008 | 08:25 PM
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On a K- and KE-Jetronic you always should open the throttle to ~50% when starting.

Idling... check the additional air unit (don't know how you call it), fuel pressure and the temperature sensors...
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Old Jul 19, 2008 | 09:30 PM
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ned to get the car checked over fella
i remember the servo was weeping slightly
is the cold start still disconnected
also check that the auxirly (spelling) is opening and closing correctly
whats does the car idle on when warm using a proper rpm gauge not the rev counter
also started and come on choke evertime when i had it fella propb needs a good set up and clean
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Old Jul 19, 2008 | 09:36 PM
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have you checked the fuse box ie the heated seat fuse i belive, powers up the electronic side of the fuelling. very delicate system
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Old Jul 20, 2008 | 05:00 PM
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havent checked anything yet, not ormally a problem i just plug them into the diag machine but cant with this old thing

just a few pointers would help, were is the cold start sensor etc




gup auxillery?
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Old Jul 20, 2008 | 05:19 PM
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check the engine temp sensor,its undernieth the inlet manifold...when cold use a multimeter across the terminals,and the reading should be between1.3-3.6 k ohms....

worth a try i had probs with mine mate..good look
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Old Jul 20, 2008 | 05:21 PM
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Yeah would have thought coolant temp sensor from a generic knowledge of cars.
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Old Jul 20, 2008 | 05:33 PM
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makes sence spose, i wondered why i couldnt see any sensor on the coolant side of things as that was my thought a few days back


spose its fiddly as fook to do
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Old Jul 20, 2008 | 05:40 PM
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bit of a pain being on the under side of the inlet manifold..but youll sort it..i was ok i done it in work on a ramp...

but yeh mine was an arse to start when the sensor went down..they are only cheap as well..get on it mate
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Old Jul 20, 2008 | 06:10 PM
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Almost a service item on some cars, and about a tenner, always worth a change IMO.
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Old Jul 20, 2008 | 08:25 PM
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Just sell the car back to me, wont have problems then PMSL...
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Old Jul 20, 2008 | 08:28 PM
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Missing the blue oval already lol
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Old Jul 20, 2008 | 08:31 PM
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Just miss the series one, saw some at the show today, was gutted.
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Old Jul 20, 2008 | 08:36 PM
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I bet mate, chin up you have a top motor now
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Old Jul 20, 2008 | 08:39 PM
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ive sold it i think to a mate, he drove it and has fallen in love lol
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Old Jul 20, 2008 | 08:40 PM
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Im chuffed with the motor mate, nailed an ST3 other night, tell you about it over a beer. Need it faster now!!
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Old Jul 20, 2008 | 08:41 PM
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ive sold it i think to a mate, he drove it and has fallen in love lol


NOOOOOOOOOOOOOOOOOO!!!!!!!!!!!!!!!!!!!!
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Old Jul 20, 2008 | 08:42 PM
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good to see my work still going strong lol
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Old Jul 20, 2008 | 08:43 PM
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Originally Posted by MrBroadside
ive sold it i think to a mate, he drove it and has fallen in love lol


NOOOOOOOOOOOOOOOOOO!!!!!!!!!!!!!!!!!!!!
you can say that again fella
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Old Jul 20, 2008 | 08:43 PM
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Get it gone, next weekend for a catch up mate your kid mentioned a possible night out. Have a "sizzling night" lol

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Old Jul 20, 2008 | 08:43 PM
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still a lot of car for the money, hes offered me 2250 with a new ticket so ill more than likely let him have it
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Old Jul 20, 2008 | 08:45 PM
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Originally Posted by lardypants
still a lot of car for the money, hes offered me 2250 with a new ticket so ill more than likely let him have it
pass my number over fella if your mate buys it and wants any info
still better to sell it to adi tho
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Old Jul 20, 2008 | 08:46 PM
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get some pics up fella of the old girl dude
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Old Jul 20, 2008 | 08:49 PM
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hed never offer enough he knows what i paid for it lol
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Old Jul 20, 2008 | 08:51 PM
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the only thing i hate avout the car is somoene fitted the wing indicators, was so tempted to get rid of them
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Old Jul 20, 2008 | 09:24 PM
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yea thier not even even if you look one is closer to the arch than the otehr side
on your pm i remember them working fella
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Old Jul 21, 2008 | 05:40 PM
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went to scrappy doday and got all the indicator wiring etc sorted


looked under inlet manifold, saw a few plugs but there was a black plug underneit at back, unplugged it started car it stared and idled perfectly
dont really want to leave it unlplugged so ill get a new sensor
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Old Jul 21, 2008 | 06:21 PM
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thats black plug is for the idle and cold start idle fella you can cleans these out
better off leaving it plugged in as when it gets warm it will idle all over the place is the blue plug still disconnected under the inlet
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Old Jul 21, 2008 | 06:25 PM
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couldnt see one unplugged but then hard to see anything, ill bung the car on ramp in next few days and have a look.


i did see a cylindrical unit under manifold wth a plug i presumed that was the idle control valve, it wasnt that one i unplugged

why is whatever plug your n about unplugged?

lee

Last edited by lardypants; Jul 21, 2008 at 06:28 PM.
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Old Jul 21, 2008 | 06:41 PM
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the blue one that i unplugged was the cold start one
never needed it as the car would flood in the morning but once unplugged it would start and idle almost on the button without the throttle
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Old Jul 21, 2008 | 07:06 PM
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heres the thing, the plugs i saw looked brand spanking new, metal spring depressed to pull unclip, wiring all nicely taped

prob wrong but maybe its had a touch of rewiring since you had it, all looks good, or maybe there is a black plug like that? if stood drivers wing looking down back of manifold thats were i saw it and unplugged
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Old Jul 21, 2008 | 08:00 PM
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Ł2250 is that what your after??? It would be better with me...
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Old Jul 21, 2008 | 08:07 PM
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It needs to come home...
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Old Jul 21, 2008 | 08:09 PM
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Originally Posted by lardypants
heres the thing, the plugs i saw looked brand spanking new, metal spring depressed to pull unclip, wiring all nicely taped

prob wrong but maybe its had a touch of rewiring since you had it, all looks good, or maybe there is a black plug like that? if stood drivers wing looking down back of manifold thats were i saw it and unplugged
i did a lot of rewiring on that car mainly the plugs by the inlet and also by the a/f meter too
does sound like my work
put the car on the ramp fella and you can c all the plugs properly fella
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Old Jul 21, 2008 | 08:10 PM
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Originally Posted by MrBroadside
It needs to come home...
yes it does fella when you picking it up then
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Old Jul 21, 2008 | 08:34 PM
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Originally Posted by XR2
On a K- and KE-Jetronic you always should open the throttle to ~50% when starting.
erm, no, that would be a FAULT
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Old Jul 21, 2008 | 08:54 PM
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well i had to pop into the workshop a min ago to pick up my dash gear as a m8 needed a last minute job, thought id turn the key and see, no throttle it started and idled
so spose unplugging whatever i did sorted it, however i will reserve jugement till seen it hot and ive checked the co reading
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Old Jul 21, 2008 | 09:39 PM
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unplugging things doesnt fix faults, it bodges them. just get it into any half decent RS Turbo specialist, it probably needs setting up so it dont blow anyway
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Old Jul 21, 2008 | 09:50 PM
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Originally Posted by RWD Pete
have you checked the fuse box ie the heated seat fuse i belive, powers up the electronic side of the fuelling. very delicate system

not many people know about this fuse and use it when they need a spare one!!!
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Old Jul 22, 2008 | 01:28 PM
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i must of een colour blind yesterday it was the blue plug i unplugged gup


mopped the whole car today, cleaned it all shes looking quite nice

as soon as i get it back hom ill take some pics for ya mr broadside
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