MustangWorks.com : Ford Forums - View Single Post - Failed Emissions Inspection- Please Help

Old Guy with 87 GT · 05-14-2002, 08:39 PM

my first thuoght would be ,what temp was moter running at .....if it's cold it'll run rich .....is your thermostat stock replacment or is it a low temp one (180 or 160).....the stock temp range is like 190 to 195 (i think ).....it's pretty popular to put low temp ones in but it makes the moter run richer

i'd also check your temp sencors (air and coolant) make sure there operating ok and check for vacuum leaks as well

05-14-2002, 08:39 PM	#2
Old Guy with 87 GT Registered Member Join Date: May 2001 Location: Harrisburg, Pennsylvania Posts: 379	my first thuoght would be ,what temp was moter running at .....if it's cold it'll run rich .....is your thermostat stock replacment or is it a low temp one (180 or 160).....the stock temp range is like 190 to 195 (i think ).....it's pretty popular to put low temp ones in but it makes the moter run richer i'd also check your temp sencors (air and coolant) make sure there operating ok and check for vacuum leaks as well __________________ the "not so old",old guy 87 Mustang GT T-top >hanlon t-5, pro 5.0, centerforce clutch ,adj. cable/quatrant ,3.27s ,full 2 1/2 ex(off road H) adj. reg. ,e-cam ,70mm TB, cobra intake ,1.7rr ,ported/milled e7ets w/crane springs ,306 balaced/decked short block w/speed pro forged flat top pistons ...257rwhp/302rwt best et 13.7@102 (4/11 ) '80 Capri (future project,currently collecting parts for 351 moter)