Quote:
Originally Posted by '78 SC
PeteKz's comments about manifold vacuum would apply to a CIS basic system (early SCs), but Damon88 has a 1983 engine with the Lambda CIS system. That uses the Lambda controller, throttle switches and frequency valve to enrich the mixture for acceleration and WOT. Have you confirmed those components are working? Even with the oxygen sensor unplugged, the system will operate in "open loop" mode.
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CORRECT. People are comparing the enrichment characteristics of a vacuum operated CIS system to a non- vacuum (lambda-O2) which are totally different would only cause more confusion.
Tony