This is topic Need tuning help in forum Tech Talk at Northern California Ford Owners .
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Posted by 50.stang (Member # 4009) on
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I keep pulling a code I believe 91 that says that the O2 sensors are always reading lean. Also, the car will studder at times. The motor was just put back together its got heads, e-cam and blower. 1.7 rockers also. What can be causing this lean condition? Also, the vacume is only at 8 hg but I cant seem to find any leaks. Please help me out with any advise.
Posted by 50.stang (Member # 4009) on
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Oh yeah, as far as fuel goes its got #30 injectors and a 255lph pump. Also, its got the areomotive fpr.
Posted by MustangNate (Member # 4559) on
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I don't think I'll be able to help with the actual problem, but for those who can. Maybe you should tell us what heads, blower, and how much boost you are running.
Posted by gt40 (Member # 3587) on
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What plugs are you using?What was the timing set to?
Posted by 50.stang (Member # 4009) on
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autolite 23's and the timing is at 10
Posted by gt40 (Member # 3587) on
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Was the cam advanced at 4 deg?
Posted by white1990stang (Member # 2307) on
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what heads do you have. if they are tfs they call for 3429's completely diff. plugs
Posted by 50.stang (Member # 4009) on
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the heads are edelbrocks. The cam is not advanced. Do any of you guys think that this has something to do with the low vacum? Does anyone else running a cam like this find trouble keeping their power brakes?
Posted by HungryHippo (Member # 537) on
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you probably have the wrong plugs. go to edelbrocks webpage or something to find out what you need
Posted by 50.stang (Member # 4009) on
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Ill check, but Ive known many people that have used these same plugs. They are the regular autolites with the 23 heat range.
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