FredXtreme
2010 Fiat Punto Engine Issues: Power Loss, Unusual Stalling, Black Exhaust Smoke, and Decreased Fuel Efficiency
Black smoke from exhaust on acceleration
Poor fuel economy
Check engine light on
Unsteady engine
Engine shuts off by itself
Stalling while idling
Loss of engine power
Jerking on acceleration
Strong exhaust smell
4 comment(s)
Hey again! Ah, I see. Well, based on your latest input, it could really be a whole host of things given how interconnected modern car systems are. However, it does sound like fuel or air delivery trouble. While I initially thought it might be an issue with the fuel injection pressure as well, this doesn't look the case if you haven't tampered with the fuel system. Although I'm no mechanic, the symptoms you mentioned - black smoke, jerking, the poor fuel economy, engine cutting out - sound similar to what I experienced when the air-fuel mixture in my Punto was off due to a faulty Mass Air Flow sensor. This sensor regulates the amount of air that's mixed with the fuel before combustion. If it's off, well you can have an overly rich fuel mixture causing black smoke and power loss. But also, don't rule out the possibility of having a blocked or failing exhaust gas recirculation (EGR) valve. That might be sticking or simply failing, causing performance problems such as jerking, stalling and poor fuel economy. So definitely take the motor to a trusted shop to run a diagnostic, as I doubt your issues can be solved with a simple error clearing this time. Just thought I'd throw in some potential scenarios based on my own experience with the Grande Punto. Hope it helps and you get her running smoothly soon! Cheers!
Hey, appreciate the detailed response and all the possible leads! Your personal experience really adds value here. Mass Air Flow sensor and EGR valve - I'll definitely get those checked out. Also, it's interesting you mentioned the potential interconnectivity issue. I didn't think about that. Time to book an appointment with a good garage and get a full diagnostic done. Looks like a little car TLC is long overdue. Glad I reached out to this crew; you guys are lifesavers! Again, your help's much appreciated. Fingers crossed it's nothing major. Cheers!
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Hey! I had a similar problem on my 2008 Fiat Grande Punto, and I'd say I have some car knowledge at my disposal. Took it to the local workshop, they told me it likely had to do with a error after replacing the fuel filter. The guy cleared the error entry, it ended up costing me just 45 Euro. Wonder if it could be the same scenario for you? However, to help you more, can you share if there's any recent maintenance you've done to it, especially around the fuel system? Keep me posted!