Hi. New member here.
I just read the entire thread... took a while... very informative.
I wish I'd read it before buying a 2nd hand, low mileage, 17 plate Panda Easy with the 1.2 Euro 6 engine... without test driving it first. Doh!
After spending 8 years driving a 1.1 Panda Active, I thought I knew what I was getting. Obvious schoolboy error.
To be fair, the lack of power at low revs didn't surprise me too much. After owning the 1.1 Active, and a 900cc Seicento before that, I'm used to having to drive higher in the rev range than your typical car. The lag between input and response disappointed, but didn't entirely surprise me. 'Drive by wire' is so much less satisfying than a direct connection to the engine, but it is what it is.
What caught me out was the unpredictable rev flaring.
After reading the thread here, I'd got my head around the car raising the revs as I slowly lift the clutch pedal, with no extra input from me. So I kept my eye on what it was doing as I drove, to try and figure the unpredictable rev flaring... coz it doesn't always do it.
I went out in the middle of the night and practiced some hill starts. Plenty of hills around here. No issue... clean starts.
I got used to pulling away slowly at low revs, while only using the clutch. I was actually shocked that on one occasion, I was able to reverse out of a parking space at the supermarket, using only the clutch... *while the handbrake was still on*... I only realised when the car started beeping at me like a very angry thing.
I started thinking the issue had sorted itself out somehow.
Nope!
Hill start in heavy traffic, in the middle of a queue at traffic lights. I needed a slightly quicker start than using the clutch only method, as there was a clearly impatient car right up my arse, but I couldn't go too quickly, or I'd run into the car in front of me. So... I raised the revs slightly before feeding in the clutch, with the intention of controlling my speed with the clutch, as opposed to the accelerator, till I was properly moving. Guess what? With the clutch raised about half way, the revs flared, I feared a sudden burst of speed, so eased off the gas, and the car bogged down.
Next was trying for a quick uphill entry to a roundabout, in heavy traffic. I needed to enter before the car approaching from the right entered, but not so quickly as I'd run into the back of the car that was just ahead of me. So, a bit of gas, slip the clutch..... revs flared, I panicked and eased off, and I bogged down.
Next was on a flat entry to a roundabout, as opposed to uphill. Same situation. Same result.
Now, here's where it gets interesting. Still trying to figure out what the hell was going on, I went back to these locations in the middle of the night, to see if I could recreate what had happened, to try and find a way to drive around the issue. Did the revs flare again while I practiced? No, they did not.
What I'm taking away from this is that it's not the hill start, or the attempt to get away quickly, that's causing the revs to flare. It's the hesitation. It's the need for a quick start, but not *too* quick, because of cars in front. It's not the location... it's the situation.
So... a few extra revs dialled in for speed, and a slipping clutch to maintain control and not hit the car in front.... it's putting the car into the zone where the clutch sensor automatically adds revs, and the amount of revs it adds seems to be proportional to how much gas you're giving it.
To make the situation more dramatic, the amount of power you have at your disposal when the revs stop flaring and you're fully off the clutch, is somewhat less than you had while revving and slipping the clutch... which makes the car lurch.
With this in mind, I've taken to being as decisive as possible when pulling away, and if the revs do flare, not easing off the gas, but just keeping my foot in, and getting off the clutch as quickly as I can (while not hitting anything in front).
It now doesn't happen as often as it did, though it is still annoying when it does.
It seems an obvious bodge to try and fill the power hole caused by needing to conform to Euro 6 regs. So while making slow getaways smoother and easier at low revs, Fiat have created a significant issue that occurs in very specific situations. If it were a video game, and not a car, I'd say it wasn't properly playtested before release.
Years later, Fiat's solution is clear... fill that hole in the power with an electric motor, in the form of their mild hybrid. Doesn't help those of us with the Euro 6 1.2 though... coz even after all this time, the engine is still severely flawed. I'll be taking it to a Fiat 'approved' service centre soon for a service, and will have them check if it's missed any ECU updates etc... but I don't expect anything to come of it.