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Some CIS checks... Posted by walt [Email] (#2707) [Profile/Gallery] (more from walt) on Sun, 3 Apr 2016 19:34:07 In Reply to: Fuel-Air mixture locked at 60%, heavyjeff [Profile/Gallery] , Sun, 3 Apr 2016 16:10:08 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Per the factory manual for 81-83 saab engines, check:
1. air leaks between mechanical air flow sensor and engine
2. control pressure on warm engine - low pressure means too rich a mixture
regulator with Bosch # ending in 084 control pressure 2.5-4.0 bar at 35C
regulator with # ending in 085 control pressure 2.0-2.5 bar at 40C
3. fine spray pattern from all 4 injectors and no leaks from cold start valve
4. also air leaks upstream of oxygen sensor (exhaust manifold or its gasket)
posted by 74.215.189...
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