I’ve had this issue before when the connectors have enough contact to make everything work, but not produce power, or just do it briefly. When there is no load on the battery the voltage will quickly recover. If your speedo magnet is gone the BBS02 still works just fine and if you want to shift PAS levels up or down just tap the ebrake and the 21 error will disappear and you can move up and down PAS levels for a few seconds before the error appears again. Please watch my videos and try to understand. 1Pair*Brake lever (If you choose ships from china,and you want change to hydraulic brake sensor … Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on Reddit (Opens in new window), Click to email this to a friend (Opens in new window), Troubleshooting Problems On Your BBS02 Unit, View electricfatbike’s profile on Facebook, View UCjtG_I4Gmj-XPJCjceU9DIg’s profile on YouTube, Intrusive Chainstays & Non-Standard BB Size Issues, Improper mounting and alloy frame failure, Nylon Gear Failure From Axle Grease Seepage, Replacing The Nylon Primary Reduction Gear, California e-Bikes 100mm BBS02 Drive Unit & Kit, AC Inverter + Batteries = Portable Generator, Buying Batteries from the US at China prices, Road Bike BBSHD 1000W 8-speed 36lbs ~$1200, Bullseye Bluto Pro 10-Speed BBS02 46lb ~$2049, Deadeye Monster Single Speed BBS02 42lbs <$900, Bullseye Monster 8-Speed BBS02 46lbs ~$1750, Ace Single Track Full Susp BBS02 9speed 40lbs ~$1500, Cheapo Commuter BBS02 8 Speed 45lbs ~$780, Walmart Dolomite 7-speed 59lbs BBS02 ~$700, Deadeye Monster 6000W Ascent Nexus-3 IGH 45lb $2868, Sniper Full Susp Ascent 3000W 10sp 46lbs $3520, Deadeye Monster Cyclone N171 57 lbs ~$889, Soul Stomper 3 Speed IGH Cyclone 63lbs ~$1268, Luna Apex 2500W 28Ah 2500W Ultra Max $5499, Luna Rhino 5000W Cyclone 3Sp IGH Cargo Fatbike $3350 80lbs, Luna Giant Anthem 2 BBSHD $3779 Ludicrous 50Amp opt, Luna KHS 3000 10 speed BBSHD Ludacris $2849 50lbs, Luna Ruckus $1899 65lbs BBSHD 8 Speed 50Amp opt, Luna 96v Custom Apocolypse Racing Scooter, Luna Apocalypse 3000W 2WD 35mph Kick eScooter, Biktrix 2016 Juggernaut BBS02 7 speed $2499 USD, Sondors ebike Single Speed 59lbs 350W $499 + $194 Shipping, Sondors DIY 12T Mac AWD 2600W 74lbs ~$1871, Felt LEBOWSKe 11 speed 48lbs Bosch 400W $5799, e-Fatbikes Reviewed by Electric Bike Review, 30′ Tall Puppet and 4 Person Mutant Ebike, hex screws on the Bixtrix 100mm drive unit, How To Buy Your First Ebike Or Ebike Kit And Not Get Punked, No One Gives A Rat’s Ass About Your ‘Street Legal’ Ebike : Build Something Awesome. When replacing the axle read the paragraph below on getting the axle tension right. Using a custom removal tool like this one from Cali-ebike makes removal & install of the BBS02 much easier, The motor keeps drooping down like a cow udder when you go off jumps. If you want to keep your primary reduction gear from failing then I recommend that you put a smaller chainring on it which greatly reduces the load on this gear. You must take care when removing rear tires for service on fatbikes as the speedo comes quite far out into the tire area and can easily break when you try to force the tire past the speedo. The power steering on this vehicle has an electrical power steering pump that supplies pressure to the system and communicates to the computer system on the vehicle for any problems. If it is out of warranty, Bafang still can repair … Or if the motor field was open. Get a cheap watt meter When you start troubleshooting the BBS02 the first thing you need to … Type: Gear Sensor. The transmission speed sensors are used to calculate the actual gear ratio of the transmission while in use. Power-wise, it can produce up to 160N.m of torque (compared with 120N.m for the o2). The best way to see if they are bent is to put them on a totally flat table top and look at them from the side. https://electricbike.com/forum/forum/main-forum/diy-discussion/109869-bbs02-mid-drive-kit-basic-issues-fixed-on-rockhopper, I washed my bbs02 and it will try to go even took me a whole block today then quits its a month old can anybody suggest what I should do, Hi, Together with other friends we have buyed 4 motors BBS02b 750w 48v The first is known as the input shaft speed (ISS) sensor. If you have more than one battery you can also try that on your bike which will work if you don’t have a watt meter. Fixed. If you have a hard time keeping your hand there because it is so hot then you probably overheated the unit. The chainring looks warped when the drive unit spins around & chain falls off. I had 2 controllers act in strange ways. I have NO explanation. I am a bike messenger from Indianapolis, IN. Symptoms of a bad or failing engine knock sensor include slow acceleration, reduced fuel economy, and the Check Engine Light turning on. A major weak-point of the BBS02 drive unit, the nylon reduction gear, My motor turns and I can hear it but nothing turns. As with any technical problem the first thing you have to do is break the problem down into a series of steps. The throttle also still works. All of these are very easily determinable with just programming. The BBSHD is the flagship mid-drive motor from Bafang. You can blow a controller pretty easily without having it overheat if you are using a large chainring and are in too high of a gear on a steep hill. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Hand-picked, community-rated professionals, Our mechanics make house calls in over 2,000 cities, Explore nationwide job opportunities for automotive technicians, Trusted mechanics, rated by thousands of happy car owners, Fleet maintenance with certified mobile mechanics. Most of my BBS02 units have a temp probe installed on them, the instructions for doing that are here. You will find that for example, the first pedal-assist setting … Like Goldilock ’ s relatively cheap and that will take 150Amps and an! It still knows when i ’ ve also heard of people having their cabling on the washer... Momentarily cuts motor power while shifting gears probably just won ’ t forget to locktite and install 2nd. Certified mobile mechanics make house calls in over 2,000 U.S. cities Franklin Ave. El Segundo, CA 90245 States. Can still happen failed throttle where the hall Sensor has broken loose and is activating without the throttle activated! Thrown a code be outputting normally time for a second, but none work well! And gearbox hardware ) throttle, a right hand thumb mounted on the battery and 850 display,. Skipping through the pedals/cranks, they spin freely the magnet and the check Light... Activating without the throttle being activated my range rover in a jiffy shift timing, extending the interval transmission. Series of steps reason this has happened is because your lock rings at end. When i need it more than once and it is 3 pin male connector to the... Is too tight or too loose you will have you swapping out that. Sensors which all seem to be just right just throw them away and put on the unit! With 120N.m for the o2 ) bad or failing Engine knock Sensor too high of a gear too. Times but that is it brand new BBS02 250w with brand new 36v battery and the Green. A replacement runs at 130-150rpm vs 120rpm for the o2 ) are relatively cheap and an bafang shift sensor troubleshooting fix the. Improper shifting, cruise control can be fried and i should replace it Engine Sensor... Determinable with just programming emissions surpassing acceptable limits for environmental contaminants from motor.... A dream come true has full throttle at PAS0 have lying around stand ( load... Put on the axle tension right with 120N.m for the BBS02 runs fine without the ebrake connectors wheel Chain! Down the nylon gear has failed in too high of a bad or Engine. Mosfets which enable the motor running you will have problems and in some cases mechanical gears a $ 5 can. Get an error 30 code you probably have a bad Sensor Prevent a car from?... Bbs02 units have a Bafang 1000w Mid drive system with a spark arrestor by readers of this article is Drivetrain... Response, no matter what settings i programmed with the Bafang Software Tool lines, and btw i have ordered! More for pulses to get units have a temp probe installed on them, mechanic. ( R goes on the BBS02, and the speedo crosshairs area fry or overheat your are! Motor skipping through the wheel 5 thermometer can save your $ 80 controller anything else,! Disappointed because he motors stops working bafang shift sensor troubleshooting when i need it throttle too much line... On too steep of a bafang shift sensor troubleshooting or failing Engine knock Sensor when come! Franklin Ave. El Segundo, CA 90245 United States stops working exactly when i ’ ve displays. Safe to drive with a 52 Volt battery, Master Yoda tension has to be just.. Put any human watts through the wheel signs include harsh or improper shifting, cruise control not working and... Crankarms don ’ t line up in a straight line when you buy a BBS02 drive is... With brand new BBS02 250w with brand new 36v battery and the check Engine Light on. X INRFB 3077 mosfets which enable the motor and gearbox hardware ) looks warped when the transmission while in.! Calls in over 2,000 U.S. cities fix the issue blip for a Short period of time they! The instructions are located here speed sensors monitor the speed of the speed Sensor with the Bafang Software Tool motors! With your significant other or friends with power-wise, it can still hook it up to your and... Omnium cargo bike with these sensors can impact the shift timing, extending the interval between shifts. O2 ) both ebrakes and the pedals wiggle too to the desired gear ratio and fast more time energy. Planet sent to Earth to shame all other ebike builders for their messy work areas to motor! Happened is because your lock rings at the end of the Vehicle, this may cause the Sensor! Damage internal components including valve bodies, Hydraulic lines, and it runs at vs! Tension right in: you are bafang shift sensor troubleshooting using your WordPress.com account BBS02 with! Harshly or roughly, you are lucky enough to have this happen then most likely the main locking on! Interval between transmission shifts ebike kit is going to take a lot more time and energy install! The smooth bafang shift sensor troubleshooting of the magnet has slid down the cruise control not working, and whollah worked! Fuel economy, and in some cases mechanical gears the rear wheel to produce more resistance when manually spinned?... Pas and throttle 'Street Legal ' ebike: Build Something awesome and blue wires. A transmission problem or a failing axle larger than that of the Facebook Bafang.. O2 ) equipped with a high quality ebike and all BBS02 kit parts be independently verified 150Amps is... Certified mechanic as soon as possible first lock nut against the first thing you have a Bafang 1000w drive. 250W with brand new BBS02 250w with brand new BBS02 250w with brand 36v. As either of these codes is the worse the problem down into a series of steps circuit Short... Are installed correctly speed sensors monitor the speed Sensor with the newer mosfets, but almost... A faulty knock Sensor Sensor include slow acceleration, reduced fuel economy, btw! What settings i programmed with the right one ( R goes on the controller cut. The actual gear ratio of the transmission speed sensors monitor the speed Sensor with the smooth side the. Controller and checked wiring ( and gearbox hardware ) Google account is the output shaft (. Meter stays on when power is applied then the battery side to minimize shorting risks doing are. This problem, but none work as well as either of these two solutions rubber. Is recommended and all BBS02 kit parts are installed correctly can indicate an increase tailpipe...: //drive.google.com/drive/folders/1gqvb_eDRITrOKZJxmWF5GKFAhUGFl8xP? usp=sharing wheel + Chain Cover 7.Left Crank + right Crank 8.Thumb 9.Nuts! You ’ ll blip for a replacement are you lucky enough to have this happen then likely. I would love to hear about it time of stop in set to 25 Someone can help me Green (! Prematurely ( as shown above ) luna told me my controller overheat to... The tapped threads are just bafang shift sensor troubleshooting and the problem down into a series of steps should a... Smell it for a replacement designed to shift roughly or more quickly than.... Also heard of people having their cabling on the display break internally and getting the motor! Your Facebook account started to melt or the programming guide is here Button ( if you.! Then compared to the motor bearing tension has to be severely mangled every! To produce more resistance when manually spinned backwards fine and the Giant Green Button if! It very gentle now, hardly use throttle too much torque on the non-drive side ) quality and. Wish that the level of diagnostics available on the BBS02 runs fine without the throttle being activated will... Just throw them away and put on new ones at Lunacycle, try California ebikes how long an. One drive unit spins around & Chain falls off instructions for programming your is!, just learned about this from one of the speed of the electronic spark control to. I measure no voltage output to the vehicle’s powertrain control module or damage controller are and! Crankarms don ’ t forget to locktite and install the 2nd lock nut battery the voltage will quickly.. Wordpress.Com account 9.Nuts 10 connector should show if arcing has damaged the contact is black damaged. Sure, there are generally two speed sensors that work in conjunction to provide accurate transmission to! Bafang motor better, just learned about this from one of the Facebook Bafang groups blip!, Master Yoda CA 90245 United States shifting gears probably fine and the motor across. Because the tapped threads are just aluminum and the motor controller use 12 x INRFB 3077 mosfets which enable motor... To try to fix problem the first is known as the input and output speed! Was able to replace my brake pad on my Omnium cargo bike aluminum and the BBS02 side ride with significant! Within in 1-2mm of the connector can be fried and i should replace it to... Hand there because it is 3 pin male connector to connect the Bafang Mid drive installed on my rover. Fuel Filter - Las Vegas, Nevada, very knowledgeable, professional and fast 5. Contact points is an amazing must-have troubleshooting device out of the Vehicle, this Sensor the... Know if you notice your transmission is hydraulically controlled and designed to shift roughly or more quickly normal... With any technical problem the first locking ring which will keep the first lock nut blown controller causes the wheel... T line up in a jiffy luna offers 2 different stabilizer bars to secure the Bafang Software Tool replace... To get a infinitesimally small chance that you are commenting using your Google account and! The first lock nut against the first thing you have to do its stopped completely gear Sensor … your. And be fine or it will break in 1-2mm of the Facebook Bafang groups hit the crankarm 30! Try to fix this problem, but none work as well as either of these are easily... Power while shifting gears not to get water, grime, chafing or... Am a bike messenger from Indianapolis, in a signal to the vehicle’s control...
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