benjamin_star8
Twingo cylinder pressure fluctuation
Summary of the thread
A 2011 Renault Twingo with a diesel engine was experiencing cylinder pressure fluctuations, leading to higher fuel consumption, reduced engine power, and a check engine light. Initial thoughts on potential causes included issues with the head gasket, crankshaft, fuel injector, turbocharger, or timing belt. However, further investigation revealed that the problem was a consequential error linked to faulty wiring, which was resolved by addressing a minor fault code, eliminating the pressure fluctuation without any repair costs.
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4 comment(s)
benjamin_star8 (community.author)
Good point about the consequential error! I hadn't fully focused on that. I did a quick scan and got a few codes, but they seemed kinda generic, nothing screaming 'culprit!' Should I be digging deeper into those seemingly minor codes, almost like they are clues?
leosky1
Totally! Think of it like this: the cylinder pressure issue is the symptom, not necessarily the disease itself. Those 'minor' codes could be pointing to the actual root cause. But if you don't find anything, it might be better to have a workshop take a look at it with professional tools.
benjamin_star8 (community.author)
You were spot on! Turns out, it was indeed a consequential error. The 'minor' fault code was related to some faulty wiring. After fixing the wiring, the cylinder pressure fluctuation disappeared. The best thing: total repair cost 0€! Thanks for pointing me in the right direction!
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RENAULT
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TWINGO
leosky1
Whoa, that sounds like a proper headache! Cylinder pressure issues can be tricky. Are you sure it isn't a consequential error? Have you checked for any other fault codes that might be triggering the pressure fluctuations? Like, is there any sensor that has gone bad?