| Author | Message | ||
     _gdkp_ |
Hi, today i wrote to Erik Buell Racing @tech support, concerning if the lambda (O2) Sensors are deactivated. So one guy wrote back: Our race ECM's never disable O2 sensors. Is this right? So i will use my stock exhaust and if the lambdas deactivated my catalytic converter (european buell) will take damage after a while... Thanks  | ||
| Blk09r |
Why would you question what E-B-R tells you about their own product?  | ||
| T_man |
I seem to remember that E-B-R mentioned that on their race bikes they run strictly off the map without the 02 sensors. Furthermore as the E-B-R race Ecm maintains 100 AFV's front and back in any situation the Ecm effectively limits the capacity of the 02 sensors to do anything at all (unlike the stock ecm). This is my take on it. | ||
| Aseecobra |
Kevin, Please explain how the O2 sensors deactivates the catalytic converter? | ||
| Cowboytutt |
Thats what I was wondering?? -Tutt | ||
| Anonymous |
Aaaauuuuggfgfhhhh. The Internet. Source of insanity. Race bikes run without O2 sensors because fuel injection engineer is full time in the pits dialing in the bike all day long to suit conditions. Bad, bad choice on a bike without a full time EFI tech, and hourly recalibrations. So on the street, run O2 sensors. The Erik Buell Racing ECM does not maintain 100% A/F ratios in the engine, the reading is simply an average measure of what the O2 sensor is seeing. Fuel and spark are continuously being tweaked by the 3D mapping and input from the sensors, of which the O2 sensors are only two. O2 sensors will not ruin a catalytic coinverter; that makes absolutely no sense. They are on every production EFI catalyst vehicle these days. | ||
| Blk09r |
Thanks Anon! You should probably save that response for the next time this comes up in a couple of weeks. Save yourself some typing. | ||
| Aseecobra |
Kevin, An excessive rich fuel mixture or large amounts of engine oil in the exhaust could damage a converter. You would most likely be able to see smoke from the exhaust if such conditions exist. Having the O2 sensors working while in closed loop is your cats best friend. The AFR in open loop is not excessively rich to damage the cat using the Erik Buell Racing or Buell ecm. Anony, Any chance a wide band O2 sensor input ecm is in the works? | ||
| _gdkp_ |
thanks for all great answers! OK guys i see whereīs the mistake @ my post... i forget following sign ";"... "the lambdas deactivated; my .. take damage" Sorry guys,  The lambdas donīt "deactivate" the catalytic converter, but if the sensors are donīt work or deactivated there can be a damage on the CAT! - So on i wouldnīt risk that my exhaust is beeing defective after a while, if i use the Erik Buell Racing ECM... | ||
| T_man |
Thanks Anon, that clears things up. Glad to get it from the horses mouth. | ||
| Blake |
>>> >>> Our race ECM's never disable O2 sensors. >>> Is this right? Yes. >>> Will the catalytic converter suffer damage from use of Erik Buell Racing race ECM? No. Ride and enjoy!  |
