2010 Nissan Note: Check Engine Light and Faulty Fuel Filler Flap Position Sensor Query

Hey there! I feel you. Had a similar problem on my 2013 Nissan Sentra a while back. Seems right about the faulty fuel filler flap wiring harness you're mentioning. In my case, it turned out to be a problem with the circuit from the dashboard. The weird lights popping up in the speedometer and check engine could be signalling towards some harness issue too. What I remember my technician saying is that it's not really a serious problem, but if left unattended it may cause some issues down the line – like it can mess with your fuel delivery system a bit – so it's definitely worth getting checked out. They had to do a bit of detective work - checked trouble codes from the OBD-II port first, then inspected the sensor followed by the wiring harness to make sure it had the right voltages. Turned out for us, the harness was worn and had to be replaced. Keep in mind, all cars are different, your case might be different. But anyway, hope that gives you a bit more peace of mind. Get it checked from a decent technician who knows what they're doing and you should be fine. Make sure to update us, aight! Good luck!

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Thanks so much for sharing your experience! This definitely eases my mind a bit about the situation. It's great to hear that I'm on the right track regarding the fuel filler flap position sensor being the culprit. And yeah, I will make sure to get it looked at by a reliable technician to avoid any future problems this might cause. By the way, if you don't mind me asking, do you happen to remember around how much you ended up spending to get your wiring harness replaced? Also, wondering if you've run into any similar issues since then or if replacing the harness sorted everything out? Seriously appreciate the help, dude!

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Hey again! So let me spill the costs of my saga real quick - the replacement of that stubborn fuel filler flap wiring harness set me back by around 155 Euro. Not the cheapest venture, but what can you do? Cars, right? Now, about your second question - since the visit to the mechanic, the issue with the faulty fuel filler flap position sensor was sorted out and lucky for me, no similar gremlins popped up! That one fix seems to have taken care of the whole shebang, the warnings, the "fault stored" messages and whatnot. Really hope this gives you some direction! Keep us in the loop about your own story, yeah? Wishing you smooth drives ahead!

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Hey! I can't thank you enough for the detailed response. That price point helps me get an idea of what I might be looking at here cost-wise. And it's seriously reassuring to hear that sorting out the wiring harness issue took care of the problem completely for you. Now I've got a little less mystery in front of me and feeling a lot less on edge about taking the car into the shop now. I'll make sure to update you guys once I've got this issue taken care of. Your advice and experience have been invaluable, dude! Hoping for those smooth drives just like you. Take care and talk to you soon!

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