Quote:
Originally Posted by deezee
A regular lambda on a production car is measuring a very narrow range, giving either a lean, ok or rich result (simplified) A wideband lambda can read a complete range and therefore allows you to help tune an engine.
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the out put from a narrow band ranges from .2-.8v with a tight transition at a afr of 14.7 around .45v and the ecu is set up to make it flip flop from high to low at the transition point
good enough for basic mapping and running closed loop for cats
widebands need a seprate controler as thay operate at a totaly diffrent voltage range (some contolers can emulate a narrow band tricking ecus to run a diffrent afr) unless its linked to an ecu thats designed to use it that is