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Benelli leoncino 500 strong exhaust smell and high fuel consumption after Map sensor replacement.

1.6K views 11 replies 2 participants last post by  dictater2  
#1 ·
Hi everyone.
I have a 2020 leoncino 500 with 14500KM.
Lately i've replcaed the map sensor due to stuttering engine and p0108 error code, the replacement fixed the problem.
Since then, i've noticed strong smell from the exhaust and poor fuel economy.
My guess is something in the air - fuel mixture..
Is there anything i can do (I have an OBD Scanner) or i must go to the dealership?
Thanks
 
#2 ·
It sound like I have the same problem with mine, how did you diagnose? I live in Thailand and none of the dealerships have diagnostic equipment. Did you replace your self. Was it a constant problem or did it come and go? Please let me know, I've had this problem for two years and have tried everything and its driving my batshit.
 
#3 ·
Hi, I tried to replace some parts before i've reached the MAP sensor. I've replaced the spark plugs and the fuel pump because i thought that was the problem but it didnt solve it.
I've connected a scanner to the OBD2 port under the seat and than saw i had a p0107 code and that's when I've replaced the map sensor and the problem was solved.
I did all by myself.
The shuttering problem did come and go - mainly around 6 RPM.
I recommend buying from AliExpress an OBD2 scanner that connects to your phone and an adapter for benelli bikes so you can scan on your own.
 
#11 ·
Hey man, looks like you were smart and took photos of the process. Im just trying to fit the take back on and I can't get the fuel filter to fit right, it seems almost to be made for another bike, which is crazy cause I've had the tank off ten times and never had a problem but every configuration seems wrong, I'm crimping the pipes etc. If you got a pic would love to see it, can't find on the net either - of course.