Hi folks,
I've had a Panda 1.2 2005 for the last 10 years, and never had a problem, so buying my daughter (ok she co-funded it) a fiat 500 2014 Lounge 1.2 seemed like a good idea...
Problem is that since the cold weather, it's been playing up and still has a problem, so could really do with some help. I've read the post about a lumpy 500 at idle. My 500 symptoms seem similar but it also is lumpy/hesistant especially at lower speeds.
Car has done 60000 miles
About a month ago:
Car starts fine, sounds ok.
However, after the car has been driven about 1/2 mile, sudden loss of power, can hardly keep going and very juddery. After about 1/2 mile further, problem goes away and car starts to run much better, but still not perfect
Given the car is 9 years old, and winter is on us it made sense to get a new battery fitted which I did.
This seemed to really help, but still some loss of power, but not as bad.
Connected an OBD II scanner, cleared all codes, then went out. Got Fault P0300 and P0304 - cylinder 4. Great news I thought. We know where the problem is.
So, reading online, possibilities are spark plugs or coil pack. To be safe, I changed the spark plugs and coil pack at the same time yesterday.
Today, my daughter took the car for a long drive, 70 miles round trip. No sudden loss of power, but still very lumpy. No fault codes.
Car drives much better at speed - 50mph plus. but stutters on slowdown.
At idle it seems to have a stutter every few seconds
So car has had new battery, new coil pack, new spark plugs (all from euro car parts, not 2nd hand)
I've just added Wynns Injector cleaner and will see if this helps, but what are the next steps?
one question - Should I need to adjust the spark plug gap?
My thoughts:
Dirty injectors?
Will reading anything else from the ODB II port help at all? I've just got a generic bluetooth device and phone app, but it can monitor in real-time.
All thoughts appreciated.
I'm an amateur - not professional mechanic - be kind
Cheers
CB
I've had a Panda 1.2 2005 for the last 10 years, and never had a problem, so buying my daughter (ok she co-funded it) a fiat 500 2014 Lounge 1.2 seemed like a good idea...
Problem is that since the cold weather, it's been playing up and still has a problem, so could really do with some help. I've read the post about a lumpy 500 at idle. My 500 symptoms seem similar but it also is lumpy/hesistant especially at lower speeds.
Car has done 60000 miles
About a month ago:
Car starts fine, sounds ok.
However, after the car has been driven about 1/2 mile, sudden loss of power, can hardly keep going and very juddery. After about 1/2 mile further, problem goes away and car starts to run much better, but still not perfect
Given the car is 9 years old, and winter is on us it made sense to get a new battery fitted which I did.
This seemed to really help, but still some loss of power, but not as bad.
Connected an OBD II scanner, cleared all codes, then went out. Got Fault P0300 and P0304 - cylinder 4. Great news I thought. We know where the problem is.
So, reading online, possibilities are spark plugs or coil pack. To be safe, I changed the spark plugs and coil pack at the same time yesterday.
Today, my daughter took the car for a long drive, 70 miles round trip. No sudden loss of power, but still very lumpy. No fault codes.
Car drives much better at speed - 50mph plus. but stutters on slowdown.
At idle it seems to have a stutter every few seconds
So car has had new battery, new coil pack, new spark plugs (all from euro car parts, not 2nd hand)
I've just added Wynns Injector cleaner and will see if this helps, but what are the next steps?
one question - Should I need to adjust the spark plug gap?
My thoughts:
Dirty injectors?
Will reading anything else from the ODB II port help at all? I've just got a generic bluetooth device and phone app, but it can monitor in real-time.
All thoughts appreciated.
I'm an amateur - not professional mechanic - be kind
Cheers
CB