2019 Lowrider running rich
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Novice
Joined: Mar 2024
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From: Canada
2019 Lowrider running rich
I have a 2019 softail lowrider. I have the 475 S&S cams and upgraded oil pump. I use the FP3 tuner and after auto tuning multiple times my rear cylinder is running rich and I can’t get it to stop. My fuel consumption is quite bad aswell. Any advice or how to fix this? Should I get in touch with V&H maybe they have a map for this? Thank you.
Road Captain
Joined: Nov 2017
Posts: 575
Likes: 263
From: Spokane, WA
I have a 2018 Low Rider with S&S 475 cam. Mine runs way better when I lean out the cells at and just above the idle. I think the overlap with this cam allows fresh air into the exhaust which the O2 sensor reads as a lean condition so it adds more fuel when in fact the mixture was ok.
How do you know that the rear cylinder is running rich?
V&H should be able to help.
How do you know that the rear cylinder is running rich?
V&H should be able to help.
Cruiser
Joined: Apr 2021
Posts: 176
Likes: 43
From: New Port RicheyFL
I have a 2019 softail lowrider. I have the 475 S&S cams and upgraded oil pump. I use the FP3 tuner and after auto tuning multiple times my rear cylinder is running rich and I can’t get it to stop. My fuel consumption is quite bad aswell. Any advice or how to fix this? Should I get in touch with V&H maybe they have a map for this? Thank you.
If so, you need to adjust your VM and or fuel map a bit. Then do some data logging and Che k.
not sure how much tuning you have.
might not be a bad idea to get a base map from Dynojet. But you still will want to get it tweaked afterword
-Steve
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Novice
Joined: Mar 2024
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From: Canada
I meant to clarify, my check engine light keeps popping up and reads code rear cylinder running rich. I clear the code and it appears after half hour or so of riding. Overall performance of the bike is good.
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