lots-o-gas
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Senior User
Joined: Jun 2006
Posts: 158
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lots-o-gas
ok,since there is NO good mustang forums,i was wondering if ya'll could help me.i own a 91 mustang w/ a 5.0 H.O.,and it has shorty headers and 2.5 inch dual exhaust,it had the ac took out,and it has ford racing ignition wires,cap,rotor and coil,for some reason im getting really a crappy -10 MPG in town,but on the freeway im getting 30mpg,so any suggestions would help geatly. thx ya'll
Hotshot
Joined: Jul 2002
Posts: 14,285
Likes: 12
From: Bend,OR
yes, www.fordfuelinjection.com will show you how. codes will store all the time if there is a problem. only major problems cause the CEL to stay lit. most auto parts stores will scan codes for you aswell.
