Avehicle fails an hc emission test at idle and 2,500 rpm, and the engine has an acceleration stumble. the heated oxygen sensor (ho2s) voltage is 0.1–0.3 volts on a scan tool, and the injector pulse width is high. no diagnostic trouble codes (dtcs) are found. when propane is directed into the air intake, ho2s voltage immediately increases and the injector pulse width decreases. the most likely cause of this problem is

a. a defective o2 sensor.
b. a defective powertrain control module (pcm).
c. low fuel-pump pressure.
d. an opening in the o2 sensor signal wire.

"gps interaction and cognitive process" respond to the following: imagine that you have been asked to design a gps product that will have voice recognition and bluetooth capability. discuss and conceptualize a user interaction model. predict two (2) problems that may arise in gps products with voice recognition and bluetooth capability. recommend solutions for each of these issues. attention is one of the six cognition processes. when attention is applied to a design, the goal is to make it easier for the end user to quickly locate where he / she should type information on the computer or mobile device screen. compare and contrast how the google search engine and the microsoft bing search engine employ the attention cognition process. provide your opinion as to which search engine better employs the attention cognition process and explain why.