Gas Cap Sensor Alert: '04 Triton Owner Seeks Help

Had a similar issue with my '07 Mitsubishi Pajero last month. The fuel filler flap sensor was giving false readings due to a damaged wiring harness, basically, the wires had worn out where they flex when opening/closing the fuel door. Took it to my regular mechanic after the check engine light came on. They found the harness was chafed and shorting out. Had to replace the entire fuel filler flap wiring harness since individual wire repair wasn't reliable in that area. Not a major mechanical issue, but needed fixing to clear the error codes and ensure proper fuel cap operation. Job took about 2 hours. The tricky part was routing the new harness properly to prevent future wear. Been working perfectly since then, no more warning lights. This is a fairly common issue on these vehicles as they age.

Hey, thanks a lot for sharing your experience! That's really helpful to know it was just the wiring harness in your case. Do you remember roughly how much you paid for the whole repair? Also, just curious, has everything stayed good since the fix, or have you noticed any other quirks popping up? Cheers!

Hey there! Glad to help with the info! Yeah, the repair cost me exactly 155€ to fix that pesky wiring harness issue. It was money well spent though, the fuel filler flap position sensor has been working perfectly since the fix. Haven't had a single warning light or any other problems pop up in that area. I totally get being cautious about mechanic visits after a bad experience, but this really was a straightforward fix once they identified the problem. The most important thing was making sure the new harness was routed properly to avoid the same wear and tear happening again. No other quirks to report, my Pajero's been running like a charm since then. Honestly, it was just one of those age-related issues that these cars sometimes develop. Hope this helps give you a better idea of what you might be dealing with! Let me know if you need any other details about the repair!

Thanks for all that detailed info! After reading about your experience, I bit the bullet and took my Triton to a different mechanic yesterday. Turns out it was exactly what you described, worn wiring harness near the fuel cap. Funny enough, my repair bill came to 170€, just a bit more than what you paid. The mechanic was great though, showed me exactly what was wrong and explained everything clearly. They fixed it in about 2.5 hours, and now both warning lights are gone. Really glad I asked here first, saved me from stressing too much about it! The new mechanic even double-checked the routing of the new harness to make sure it wouldn't wear out again. Car's running perfect now, so I guess I've found my new go-to mechanic too! Thanks again for sharing your experience, it really helped me make the right decision! Cheers!