Hi prius owners, I'm getting low gas mileage (34mpg) on my 2002 Prius. I just changed the hybrid battery with Gen 2 cells. What can the reason for this be? spark plugs? mass air flow sensor? Any help is greatly appreciated. Thanks.
http://priuschat.com/forums/gen-ii-...-answer-these-questions-esp-if-youre-new.html I don't have a separate questionnaire for the Gen 1 but virtually all the questions still apply. I don't know if the 12 volt battery check method on the Gen 2 works on Gen 1.
Gen1 in winter for short trips (under 10 miles) can give awful mileage. Go on a 50 mile trip and see what you get. Also, were the Gen2 cells you used "known good" and balanced?
I guess the battery wasn't balanced or something but after installing gen 2 batteries without balancing them and using for 2 weeks now I'm getting 42 mpg. someone told me that once installed the batteries will balance themselves. no need to balance them beforehand.
