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Join Date: Sep 2000
Posts: 370
If you're actually at 16:1 AFR at warm idle, you are too lean. Adjusting the CO on CIS is super easy, a 3mm allen between the fuel distributor and sensor plate. Can't help with whether you need to plug/unplug the o2 sensor as my CIS 911's were from the 70's. But it sounds like you just need to set your CO correctly.
Old 08-04-2020, 08:10 PM
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