I have not had the pump out of the tank on my 09 TE510 - is there an external pressure adjustment and would this be a non-computer technique to trim the fuel curve with the Power Up Kit installed? Mine runs like a champ it just needs a tweak to pull out some fuel to crisp it up. From what I can read on the software - the main FCU does not have active fuel pressure feedback - so a drop in the pressure may equal drop in injected fuel. (no 02 sensor) Your thoughts? MAT
Please explain how it is measuring fuel ratio without exhaust 02 feedback. (Power up kit installed) 1- AIR TEMPERATURE (Air temperature in the intake manifold) 2- COOLANT TEMPERATURE (Engine coolant temperature) 3- ATMOSPHERIC PRESSURE (Atmospheric pressure in the intake manifold in the current position and altitude) 4- THROTTLE POSITION 6- O2 SENSOR (Senses rich or lean combustion mixture) 7- BATTERY SENSOR (Battery voltage) 8- SENSORS SOURCE (It supplies energy to the sensors) 9- GEARSHIFT POSITION (Current gear position) 10- INJECTOR (Pulse width of fuel injector) 11- IGNITION COIL (It accumulates energy and discharges said energy to spark plug) 12- O2 HEATER (It warms the O2 sensor to a temperature suitable for the sensor to give stable output) Does anyone know if there is a adjustment for the pump output pressure and/or what the spec pressure is? MAT
I looked in the service manual and there is no mention of the output pressure or any way to test it. The pump "seems" to be the same as the Sherco's had. They do sell some small parts to the pump that Husky does not. You might contact them and see if they have any info that can help you. A poster here did get a part he needed so maybe they'll pass on some information. ShercoUSA work 1-800-607-8742 work info@shercousa.com Note: Fuel injection parts that Husky does not offer.
Mat, The system doesn't measure A/F ratio without the O2 sensor, as you've correctly identified it can't. There is no adjustment for the fuel pressure that I know of, certainly nothing in the iBeat software anyway and as gl says nothing in the manual. If you want to richen things up then iBeat 2 will allow you to do this across the whole rev range. Dave
bbcmat, Your correct about the EFI system not knowing exactly how much fuel is being delivered without the O2 sensor. The variation of fuel pressure and injector performance between bike is likely what requires each bike to have the open-loop fuel map adjusted for optimum performance. Currently the best way to do this is with the Dynojet PC. It looks like the factory adjusts the FB1 (map offset) setting so that when the O2 is providing feedback during idle, the activity FB ( real-time trim) displayed value is 100% which means that the map is correct for 14.7:1 AFR. This why the FB1 is not the same on new bikes. It looks like the typical range is from 97 to 103. All of this is really for emissions requirement and not "fun factor".
