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Old 6 Days Ago   #1
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500 twin air over fuelling?

From cold you can have 2 or 3 bars on temp gauge and the car feels like it holds back or bogs down. Itís caught my other half out by stalling and not re-starting. She had AA out and they said itís flooding.
I have everything to do a service inc correct oil and some NGK ilkr9g8 spark plugs even though they were changed last year.
Any other thoughts?
Thanks.
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Old 6 Days Ago   #2
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Re: 500 twin air over fuelling?

Are you saying the temp gauge reads warm when cold? That would make the mixture too lean when cold and possibly stall?
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Old 6 Days Ago   #3
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Re: 500 twin air over fuelling?

Start it up cold ( no bars on gauge). Driving along as temp starts to rise ( 2 or 3 bars on gauge), you can feel it bog down. If you donít keep it going when stopping at traffic lights etc, it will stall and not re-start.
When fully up-to temp, thereís no problem.
Cheers.
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Last edited by TurboToppolino; 6 Days Ago at 13:45.
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Old 6 Days Ago   #4
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Quote Originally Posted by TurboToppolino View Post
Start it up cold ( no bars on gauge). Driving along as temp starts to rise ( 2 or 3 bars on gauge), you can feel it bog down. If you donít keep it going when stopping at traffic lights etc, it will stall and not re-start.
When fully up-to temp, thereís no problem.
Cheers.
What age.. our 2013 does this..

I believe its a temp sensor..

Charlie
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Old 6 Days Ago   #5
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Re: 500 twin air over fuelling?

Hi charlie, itís a 2015, 105hp. Just ticked over 40,000 miles.
Do you mean a faulty temp sensor so it still thinks itís cold and puts too much fuel in?
Cheers.
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Re: 500 twin air over fuelling?

Mine runs lumpy.. judders with 2 bars of temp on gauge

Doesnt matter if stood for 40 mins in winter..

Or parked for 10 days in summer

It runs lumpy if started with 2 bars showing on gauge
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Re: 500 twin air over fuelling?

Mapping issue? although NOT the same our 09 1.2 is decidedly unhappy at 30 in 4th or 40 in 5th or 1850 RPM
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Quote Originally Posted by John202020 View Post
Mapping issue? although NOT the same our 09 1.2 is decidedly unhappy at 30 in 4th or 40 in 5th or 1850 RPM
My punto 85 is perfect.. the panda 85 is poor by compsrison..

But the temp Related surging is odd

Over lockdown.. I went to go to tesco one evening.. @24'c.. ALREADY showing 2bars of temp at MAR


Jumped and phutted for 5 minutes until HOT

This was its 1st run in WEEKS.. so essentially 'started from cold'

Its perfect COLD.. or hot

Ive just not got around to MES diagnosis

Supplying FIAT..Alfa place found nothing..

Car is now 110 miles away..again
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