MustangWorks.com : Ford Forums - View Single Post - Whats the best way to tell if your running lean or rich?

Chevyguy · 09-10-2001, 10:41 AM

Somewhere buried in the EEC-IV diagnostics is a test for O2 sensor readings Lean or Rich. One of the KOER tests, My Chiltons book described it to some extent. I have not mastered that system yet, much more complicated than my old GM TBI system in my former daily drivers.

Duno if that would help your problem just my 0.02

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Frank W
90 5.0 LX coupe Daily driver. Silencer removed, K&N filter. Flexalite fan, 3 core radiator. FMS flywheel and Clutch, FMS blue wires Energy Suspension end links
88 Notch 2.3L 5 speed Parts/beater car My two Notchbacks

74 Chevy Laguna Type S-3 305 Finally fixed getting a 454 to put in garage
<A HREF="http://www.chevellepages.com/folingo" TARGET=_blank>www.chevellepages.

09-10-2001, 10:41 AM	#5
Chevyguy Backyard Mechanic/Chemist Join Date: Feb 2001 Location: Acton MA USA Posts: 435	Somewhere buried in the EEC-IV diagnostics is a test for O2 sensor readings Lean or Rich. One of the KOER tests, My Chiltons book described it to some extent. I have not mastered that system yet, much more complicated than my old GM TBI system in my former daily drivers. Duno if that would help your problem just my 0.02 ------------------ Frank W 90 5.0 LX coupe Daily driver. Silencer removed, K&N filter. Flexalite fan, 3 core radiator. FMS flywheel and Clutch, FMS blue wires Energy Suspension end links 88 Notch 2.3L 5 speed Parts/beater car My two Notchbacks 74 Chevy Laguna Type S-3 305 Finally fixed getting a 454 to put in garage <A HREF="http://www.chevellepages.com/folingo" TARGET=_blank>www.chevellepages.