poor MPG
01-23-19, 03:01 PM
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poor MPG
my 98 ls400 wont start getting decent mpg until hot. cold mornings at freezing temps only 14/15mpg. but when car get good and hot (almost half on the gauge) i get 18 city. this just started this year. And my ls has always been well taken care of. What should i start with, the ECT or o2s. I figure its one of these. Has anyone had this type of problem where cold temps. make the car run so rich
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