EFI mapping

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O2 Eliminators

Just bought Vance and Hines Pro pipes and my o2 sensors are too big what do I need to make the pipes and o2s work? Via Email If you have a Power Commander or FP3, we would suggest installing O2 plugs for the pipes and O2 eliminators for your harness. Otherwise, you will need to…

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Bike Will Not Idle

Bike will not idle once warm. I’ve adjusted over and over from other blogs. I have the cobra fi2000 power pro. aftermarket breather and renegade pipes. Bike just doesn’t want to stay running. Via Email We would suggest checking for codes 1st. You may have a bad engine temperature sensor. Also check for an intake…

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Pro Race Tuner

Is there any advantage to using a Pro Race Tuner on a stock 103 engine in a 2011 Road King? This bike is not in California and does not have to comply with their emission guidelines. Thanks. Via Email A tuner will benefit your ride, even if it’s stock. You can fine tune your m/c…

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Tuner On My Harley

Well maybe someone can help me. I have a 2015 ROADGLIDE SPECIAL. The dealer installed S&S power tune duals, V&H VO2 AF from my 2012 RGC. Also have V&H FP3 tuner also installed by dealer. Since I picked up bike I have been having a few issues. First idle is rough occasionally. Other issue is…

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Harley Stock Cam

I would think the air filter and pipes would probably require an Air/Fuel/Ratio increase. Does adding the cam upgrade, definitely need an increase of Air/Fuel/ratio more than just the air filter and pipes? 2002 FLSTCI Heritage From stock to : K&N air filter Hooker long shots (pipes) Bolt-in cam slight upgrade Via Email Any change…

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Hypercharger Intake

Q: I have a 2014 Ultra Classic. I’ve had it for 6 months and 4,100 miles. I just purchased a Kuryakyn hypercharger intake and V & H Big Radius Staggered Exhaust and the HD pro tuner. I did some research but the results are mixed. I am not looking for a big jump in HP…

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EFI Controller

Q: I sure hope you guys can help me. This problem is driving me friggin nuts. I had a stock TC96, 2009 EG. I installed a stage 2 air cleaner, full 2-2 Vance & Hines exhaust, Red Shift dual piston chain tensioners, an Axtell oil bypass valve, Red Shift 575 cams, Red Shift semi-hyd rods,…

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Harley O2 sensors

Hi, I subscribed to your site earlier in the year and find your videos really helpful. I own a 2006 Dyna Super glide. I’m doing a Stage 1 upgrade and recently I purchase Vance and Hines big shot staggered pipes the Vance and Hines breather kit and a Fuelpak for my model. I watched your…

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