Technical Cold starts

Currently reading:
Technical Cold starts

Joined
Nov 3, 2005
Messages
1,070
Points
207
Location
REDCAR
I have seen threads of 1.2,s and 1.4s, mine is a twin air 105 i have not seen threads for twin airs having problems from cold condition starts,i have been monitoring my car for a month now and it seems when on a morning it is 2c or below it tends to splutter revs drop and stalls,it can do this three times then eventually start, above 3c and it seems okay so could be a sensor ,i even tried switching to super unleaded branded fuels to no avail .i`m posting this for future reference to help any other twin air owners ,i`m on just over 2000 miles so i have booked it in next week to be looked at. I mentioned on the phone that they would find it hard to replicate unless conditions were the same temperature .they agreed but want to check for errors updates etc this could be a few trips to sort the problem out but i will keep you updated .
p.s. did the 1.2 +1.4,s ever get this sorted it never affected my older 1.3 mjet 500 (2008) thanks.
 
I have seen threads of 1.2,s and 1.4s, mine is a twin air 105 i have not seen threads for twin airs having problems from cold condition starts,i have been monitoring my car for a month now and it seems when on a morning it is 2c or below it tends to splutter revs drop and stalls,it can do this three times then eventually start, above 3c and it seems okay so could be a sensor ,i even tried switching to super unleaded branded fuels to no avail .i`m posting this for future reference to help any other twin air owners ,i`m on just over 2000 miles so i have booked it in next week to be looked at. I mentioned on the phone that they would find it hard to replicate unless conditions were the same temperature .they agreed but want to check for errors updates etc this could be a few trips to sort the problem out but i will keep you updated .

p.s. did the 1.2 +1.4,s ever get this sorted it never affected my older 1.3 mjet 500 (2008) thanks.


There's a few reports of this on the Panda forum also and mine (85) does it the odd time too, seems to be only recent cars so I'm wondering is it a euro 6 thing
 
I have seen threads of 1.2,s and 1.4s, mine is a twin air 105 i have not seen threads for twin airs having problems from cold condition starts,i have been monitoring my car for a month now and it seems when on a morning it is 2c or below it tends to splutter revs drop and stalls,it can do this three times then eventually start, above 3c and it seems okay so could be a sensor ,i even tried switching to super unleaded branded fuels to no avail .i`m posting this for future reference to help any other twin air owners ,i`m on just over 2000 miles so i have booked it in next week to be looked at. I mentioned on the phone that they would find it hard to replicate unless conditions were the same temperature .they agreed but want to check for errors updates etc this could be a few trips to sort the problem out but i will keep you updated .
p.s. did the 1.2 +1.4,s ever get this sorted it never affected my older 1.3 mjet 500 (2008) thanks.
May be rpm sensor issue.
 
When the car is hot enough its stops? if so it might be misfire on cold starts.
 
I've had my 85 TA cut out 3-4 times (but immediately restart) a few mins into being started (just over a year old), and I thought it was the stop/start mech playing up at low revs, but I wonder if it was this...
 
I've had my 85 TA cut out 3-4 times (but immediately restart) a few mins into being started (just over a year old), and I thought it was the stop/start mech playing up at low revs, but I wonder if it was this...

Example this morning foot on clutch let all the warning lights on start up go out start the car, foot not on the pedal of course, ,it started okay then the revs dropped and she stalled ,2nd start the same ,3rd time started spluttered a bit then okay temperature outside 2c so i have recorded all this data and will let them know Thursday at the dealership ,and post the findings if any here afterwards .;)
 
Interested in seeing what they say, I've had mine 3 days now and this morning I noticed it went to stall after being started but recovered. I'm thinking a sensor, the problem is it needs to be cold to test otherwise I'd take it into work and put the oscilloscope on it. I'm seeing a friend tomorrow that works in a fiat garage tomorrow so I'll ask him.
 
UPDATED
..As i thought, as i travelled 16 miles to the dealership ,engine fully warmed up and the fault could not be replicated ." Carried out system checks and report no Dtc, stored.checked for system updates,checked for manufactures service news for reports of poor starts -non mentioned!".
Therefore in 2 weeks booked back in for an overnight drop off so hopefully the next morning they can run the car as it happens through the computer.
This morning it took three starts before starting ,spluttering and stalling on 2 occasions ,last night i parked at a friends at 7.30pm and at 10pm when leaving it spluttered twice and stalled the third time it started then i need to blip the accelerator to stop it stalling ,it then briefly as i set off spluttered along for around 400 yards,before running okay,so must be something i even tried the higher grade super unleaded ,no codes showing is a concern as i cant have a car needing 3 turns of a key every time on a morning hopefully they will find something in 2 weeks time,(y)
 
Last edited:
Update 19-3-15
Well i left the car overnight and as usual the fault never occurred at the dealership ,as the temperature is warming up now first thing i`m convinced its sensor related below 2,c ,next time i will video the happenings for them to see ,they do believe me but could not find any faults etc so to be continued ...could be a long while :)
 
85TA 11 plate. 15,000miles.
It seems ours needs to wake up before it will start.

If the car is left for a couple of days, you put the key in, and turn it straight through MAR to the start position, and the starter motor is silent. Not a peep. Nothing.

Turn the key back to OFF and then to MAR, wait a couple of seconds, and then start, everything's fine.

It seems that the computers need to boot up and sync before the car will start, or at least something has to wake up.
Is this normal, or do we have a fault?

Regards,
Mick.
 
Last edited:
85TA 11 plate. 15,000miles.
It seems ours needs to wake up before it will start.

If the car is left for a couple of days, you put the key in, and turn it straight through MAR to the start position, and the starter motor is silent. Not a peep. Nothing.

Turn the key back to OFF and then to MAR, wait a couple of seconds, and then start, everything's fine.

It seems that the computers need to boot up and sync before the car will start, or at least something has to wake up.
Is this normal, or do we have a fault?

Regards,
Mick.
No it should be ready to start every time,check the battery terminals and the battery itself it has been known batteries to fail early ,or you may have a faulty connection to the starter motor ? just a thought.
 
Thank for your thoughts, but I think you're off the mark there.

The battery is very new and the contacts are fine.
The car starts beautifully even when cold and frosty.
It starts instantly any time, and instantly from Stop/Start.

It's only when the car has been standing for many hours - maybe 36hrs or more, possibly as short as 24hrs - that it sometimes won't start unless you pause to let the warning lights off and the internal fan to start up etc. It then starts perfectly.

As far as I know, it's been like this since we bought her in October last year, even with the old battery.

Seems to me that there's something wrong with the computer(s) booting up and getting in sync and not allowing the starter system to operate.

There are no other faults.

Any ideas anyone?

Thanks,
Mick.
 
Last edited:
Thank for your thoughts, but I think you're off the mark there.

The battery is very new and the contacts are fine.
The car starts beautifully even when cold and frosty.
It starts instantly any time, and instantly from Stop/Start.

It's only when the car has been standing for many hours - maybe 36hrs or more, possibly as short as 24hrs - that it sometimes won't start unless you pause to let the warning lights off and the internal fan to start up etc. It then starts perfectly.

As far as I know, it's been like this since we bought her in October last year, even with the old battery.

Seems to me that there's something wrong with the computer(s) booting up and getting in sync and not allowing the starter system to operate.

There are no other faults.

Any ideas anyone?

Thanks,
Mick.
Right there is the reason you should always let the warning lights go out before starting ,that is your diagnostics computer checking all systems before starting the vehicle ,always start the car this way (y)
 
When all else fails, read the instructions. (y)

Despite our thoughts about computers booting up, Fiat state that you go straight through to the start position.

STARTING PROCEDURE FOR PETROL VERSIONS
Proceed as follows:
❒ ensure that the handbrake is up;
❒ put the gear lever into neutral;
❒ press the clutch pedal down to the floor without touching the accelerator;
❒ turn the ignition key to AVV and release it as soon as the engine starts.
What I'm NOT doing, is depressing the clutch pedal.

I was brought up not to press the clutch when you start a car. Old habits die hard. I'll try and remember to depress the clutch and see if the car starts like it should.

Maybe a day or two before we drive the 500TA next, and I'll see what happens.

Cheers,
Mick.
 
No point myself trying to be helpful if you know all the answers ,but after asking a technician ,they do advise on waiting for the diagnostics to do there bit which just leaves the handbrake light and the engine management left then crank the engine that`s what i have done with every Fiat i have had !!:)
 
No, I don't know the answers! Just read the Fiat blurb.

Like you, I feel that allowing things to boot up is the correct way. What I fail to understand, is the Fiat instructions on the matter.

Seems daft to me, but I'l try it and see what happens.

Thanks, and I'll get back to this thread when I've gathered some on-going info.

Regards,
Mick.
 
Back
Top