2003-04 Mach 1 Registry Owners Club - View Single Post

jv7 · 06-03-2017, 05:18 PM

Car runs fine cruising around idles fine but above 3lbs of boost seems to run extremely lean it will start to backfire and sputter I think thats about the time the boost a pump is suppose to kick in other than than on fuel I'm running 80lb inj and Aeromotive 325lph fuel pump. I can rev it up to redline if I keep the boost at 3lbs or less but above that regardless of rpms seems lean. Could it be a bad bov? I have the vortech mondo. Thanks.

06-03-2017, 05:18 PM	#1
jv7 Registered User Join Date: Jan 2004 Location: Round Rock, TX Posts: 950	car runs lean under boost Car runs fine cruising around idles fine but above 3lbs of boost seems to run extremely lean it will start to backfire and sputter I think thats about the time the boost a pump is suppose to kick in other than than on fuel I'm running 80lb inj and Aeromotive 325lph fuel pump. I can rev it up to redline if I keep the boost at 3lbs or less but above that regardless of rpms seems lean. Could it be a bad bov? I have the vortech mondo. Thanks. Last edited by jv7; 06-03-2017 at 06:50 PM.