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Old 08-23-2003, 05:44 PM
richard28 richard28 is offline
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Join Date: Apr 2002
Location: westchester, ny
Posts: 747
duty cycle reading on 88 300ce

Chuck & Peter, I need your help again. Just had neutral safety switch replaced because car, 87 300e, had died. Tested for CO adjustments- got 90.5 fixed with key on, engine off. Disconnected O2 sensor & attached to a new one in the box. Same reading. With engine on, fluctuations on meter only between 90.1 & 90.8 & no meter changes as I adjusted the screw & the engine got lower in sound & smoother. Wires appeared connected in tester. Now what?
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