Hi I have a Fiat 500 twin air 2012. I have been having a problem with the engine cutting out. The engine starts fine. I will be 100 meters down the road and put it in second and total loss of power and engine stops. I then cannot start the car again without pumping accelerator and turning the engine over. I have to repeat this process a couple of times and then away I go. Once the car is warm I have no problems. The car cools then we go through all these processes again. Any idea. I've tried with stop start off or on. The motor is not on eco... any ideas. I have noticed the car a little jerky sometimes when I put my foot the floor.. fuel issue... fuel pump. Any idead
500 Twin air engine stall
- Thread starter wazwinner
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500 Twin air engine stall
Hi. Need diagnostics really. Has it had proper servicing? So all parametrrs are reset in the ecu.
How many miles on car?
Charlie . Oxford - 2012 TA
How many miles on car?
Charlie . Oxford - 2012 TA
Agree with above, would say its a sensor/actuator issue, duff information going to the ecu so its making the wrong calculations, careful data reading may be required to find the cause, though temp sensor springs to mind?
Rough running when hot suggests fueling or air volume sensing issues maybe? which too would effect cold running.
Rough running when hot suggests fueling or air volume sensing issues maybe? which too would effect cold running.
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One of the Autralian owners seemed to have a simlar issue.
Use Search function to find more info.
aschen's problems were with a late model 105TA, though that thread is worth reading.
AIUI this is a 2012 TA85. It seems hard to believe that the problem has been there since new, so something, somewhere is not working the way it should.
Diagnosing what's wrong from a keyboard halfway round the world without sight of the car is, to say the least, challenging. There've been a steady stream of reports of rough running TA's, but there's no single common issue that's been definitively identified as causing the problems.
AIUI this is a 2012 TA85. It seems hard to believe that the problem has been there since new, so something, somewhere is not working the way it should.
Diagnosing what's wrong from a keyboard halfway round the world without sight of the car is, to say the least, challenging. There've been a steady stream of reports of rough running TA's, but there's no single common issue that's been definitively identified as causing the problems.
That does sound strange but quite a little different from what our 105TA does, it's never just plain cut out whilst driving. I don't think there is much difference between 85's a 105's apart from an ECU remap. We get rough running and stalling at really cold temps. Ours sometimes feels like it's misfired on a cylinder but this should throw a engine management fault but it doesn't, it stinks of fuel too when it's playing up. Do you have excessive black soot around the exhaust?
When ours is warm it normally behaves, my partner says just recently it doesn't feel right.
My worry is with these little engines and the fact they are highly tuned is that they won't last long before developing problems.
Another thing I noticed is you say you have to pump the throttle, does it do anything whilst the engine isn't running as the throttle is electronic and not connected with a steel cable directly to the throttle body? I noticed this when we had a 595 Abarth that it had a fuel usage read out in percent and all it was doing was representing the throttle position. It looked pretty
When ours is warm it normally behaves, my partner says just recently it doesn't feel right.
My worry is with these little engines and the fact they are highly tuned is that they won't last long before developing problems.
Another thing I noticed is you say you have to pump the throttle, does it do anything whilst the engine isn't running as the throttle is electronic and not connected with a steel cable directly to the throttle body? I noticed this when we had a 595 Abarth that it had a fuel usage read out in percent and all it was doing was representing the throttle position. It looked pretty
TrevC
Established member
Could be one of many things, as said above, but it's always worth sounding out the forum in case it's a common fault.
All I can offer is when I suffered similar symptoms with a Mk2 Laguna some years ago, it turned out to be a fairly easy to replace crankshaft sensor. It was diagnosed by the Renault dealer's equipment - may be worth connecting an OBD reader to yours. Bluetooth versions are cheap on Ebay, as is the app to display results.
All I can offer is when I suffered similar symptoms with a Mk2 Laguna some years ago, it turned out to be a fairly easy to replace crankshaft sensor. It was diagnosed by the Renault dealer's equipment - may be worth connecting an OBD reader to yours. Bluetooth versions are cheap on Ebay, as is the app to display results.
77000 km and due for a service. So you think a service might rest something in the computer
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I have had diagnostic done..no problems found. There's no real excess emissions and I think if you put your foot flat to the floor no fuel will be used but little pumps is the only way I can start it ... it's like I have to flood the engines somewhat to start it.
there are several ECU parameters that should be reset after an oil change,
if these are too far out of spec. I suppose poor running is a possibility
my service garage ( fiat / alfa specialist) commented that it takes longer to reset the ECU than to change the oil and filter element
Charlie
Ah, so you are over here too...does the oil level change between weekly checks?
Cheers
D
Cheers
D
I haven't noticed.. the car is being towed to the mechanic today. So I'll post the outcome. I think starter motor has gone from trying to start it too many times though
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A stop/start starter should outlast the car. I've never seen figures for Fiat, but Renault claim 200,000 cycles, assuming an average of one cycle per two km, that's a 400,000km life.
Eh? How can you not notice?
Either the oil is at the same level every week, or its not....
Cheers
D
I'm a dumb ass with cars.lol... no engine or warning lights
No, I am talking about the bit each week where you lift the bonnet, check your oil, coolant and screen wash levels, just before or after you check that all the lights work.
Cheers
D
