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Thread: 05 ZXW Poor MPG
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Old 03-06-2013, 08:01 AM   #5
Focus Rookie
Join Date: Dec 2009
Fan#: 70949
Location: Grand Rapids MI, MI
What I Drive: 2005 ZXW 5Spd

Posts: 11
FF Reputation: 1 appickfocus02 Good Standing Member
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Thanks for the info on blocking off the radiator I'll give it a shot and see if it helps. The car has a winter package so I've been using the block heater for the past week seeing if that'll help. I did the fuel filter when I did the tank and no change there. As to the idleing I did the electronic odometer trick last week and it read 280-380rpm. Last night I just pulled the battery cable to do a reset, now the idle hangs high around 1800rpm until you come to a stop then it will drop down between the first and second marks on the tach. No bad knocking sound when idleing that low, there is a litte tick maybe injectors. Thanks for the info, Ill head to the dealer for the reflash and see if that helps this crazy idle, if not time for an iac I guess.
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