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Air leaks cause lean mix at O2 sensor Posted by walt [Email] (#2707) [Profile/Gallery] (more from walt) on Mon, 4 Apr 2016 07:24:07 In Reply to: Re: Some CIS checks..., heavyjeff [Profile/Gallery] , Sun, 3 Apr 2016 20:33:43 Members do not see ads below this line. - Help Keep This Site Online - Signup |
which forces ECU to add more fuel. On a warmed up engine and analog voltmeter needle swinging around 0.5 volts at O2 sensor, lambda should be in 45 to 55% range specified for 1982 and up. 55 to 65% for 1981 model. Same control pressure versus temperature graph for warm up regulators ending in 020, 085, 111, 070, and 102 per Bentley 8-valve Saab manual covering 1981-1988 (http://www.amazon.com/gp/product/0837603102/ref=as_li_tf_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=0837603102&linkCode=as2&tag=thesaabnetwork).
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