Smudge 123
Member
Hi everyone,
Been a very long time on this group. Some may remember my late mum had a bright orange Fiat punto and you lovely lot helped me and my late mum. Then sadly she passed away in 2017 and I had to part with mum's punto but I got a Fiat 500 in baby blue and done some decals in memory of her. Never missed a beat that car. Now in 2023 I changed to a Fiat 500x due to circumstances. Oh boy and please see below. I'm losing the will with this car. I don't want to because I know my late mum would've chose this car.
I'm hoping someone may have come across this before on a Fiat 500X 1.0 FireFly.
My car is a 2020 Fiat 500X Sport with around 36,000 miles.
For some time I have been experiencing an intermittent issue which usually occurs during cold start or during the transition from fast idle down to normal idle. On a few occasions the engine has chugged, run roughly or appeared to misfire briefly, before then clearing and driving normally.
The fault is very intermittent and the car can then complete long motorway journeys without any issues at all.
The main fault code recorded is P1471. I have also had moving misfire faults recorded on different cylinders at different times rather than one specific cylinder repeatedly failing.
The vehicle has been inspected by a Fiat dealer (Stoneacre)
and I have raised the possibility of software updates and Stellantis technical bulletins relating to P1471. I have been told the vehicle was checked, however the fault remains unresolved.
More recently I discovered evidence that the same P1471 code appears to have been recorded during a warranty visit in February 2024, meaning the same code has now reappeared over a year later. I booked it in with stoneacre as closest to me very begrudgingly and 2 days after booking the eml light disappeared on its own.
Things I am wondering about include:
- FireFly software/calibration issues
- Upstream lambda sensor
- EVAP purge system
- Wiring or sensor faults
- Battery/voltage related issues
- Anything else common on the 1.0 FireFly engine
Has anyone experienced recurring P1471 faults, rough idle during idle transition, or intermittent misfires on a 1.0 FireFly and eventually found the cause? Oh my reversing camera won't work. It had brief flick of life the other day and then not working. Apply the code u145 I think but no communication. I've also got a wobbly drivers seat which is something to do with bloster/seat sprocket I think. I mean this car may have been a Friday night job. I've not owned the car 3 years yet. Stoneacre nor Fiat will help me. It was £15,000 car
sorry for long post. I'm also in Wrexham but willing to travel.
Any advice or experiences would be greatly appreciated.
Thank you.
Been a very long time on this group. Some may remember my late mum had a bright orange Fiat punto and you lovely lot helped me and my late mum. Then sadly she passed away in 2017 and I had to part with mum's punto but I got a Fiat 500 in baby blue and done some decals in memory of her. Never missed a beat that car. Now in 2023 I changed to a Fiat 500x due to circumstances. Oh boy and please see below. I'm losing the will with this car. I don't want to because I know my late mum would've chose this car.
I'm hoping someone may have come across this before on a Fiat 500X 1.0 FireFly.
My car is a 2020 Fiat 500X Sport with around 36,000 miles.
For some time I have been experiencing an intermittent issue which usually occurs during cold start or during the transition from fast idle down to normal idle. On a few occasions the engine has chugged, run roughly or appeared to misfire briefly, before then clearing and driving normally.
The fault is very intermittent and the car can then complete long motorway journeys without any issues at all.
The main fault code recorded is P1471. I have also had moving misfire faults recorded on different cylinders at different times rather than one specific cylinder repeatedly failing.
The vehicle has been inspected by a Fiat dealer (Stoneacre)
and I have raised the possibility of software updates and Stellantis technical bulletins relating to P1471. I have been told the vehicle was checked, however the fault remains unresolved.More recently I discovered evidence that the same P1471 code appears to have been recorded during a warranty visit in February 2024, meaning the same code has now reappeared over a year later. I booked it in with stoneacre as closest to me very begrudgingly and 2 days after booking the eml light disappeared on its own.
Things I am wondering about include:
- FireFly software/calibration issues
- Upstream lambda sensor
- EVAP purge system
- Wiring or sensor faults
- Battery/voltage related issues
- Anything else common on the 1.0 FireFly engine
Has anyone experienced recurring P1471 faults, rough idle during idle transition, or intermittent misfires on a 1.0 FireFly and eventually found the cause? Oh my reversing camera won't work. It had brief flick of life the other day and then not working. Apply the code u145 I think but no communication. I've also got a wobbly drivers seat which is something to do with bloster/seat sprocket I think. I mean this car may have been a Friday night job. I've not owned the car 3 years yet. Stoneacre nor Fiat will help me. It was £15,000 car
sorry for long post. I'm also in Wrexham but willing to travel.Any advice or experiences would be greatly appreciated.
Thank you.
- Model
- 500x Sport 1.0L turbo
- Year
- 2020
- Mileage
- 36000
Last edited:
