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Registered User
Join Date: Feb 2018
Location: Ohio
Posts: 70
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Running issues
Hi, I replaced my o2sensor on my 83sc. Now on start up it’s surging rhythmically- when it warms up it goes away, but the motor surges at lower rpms. When Im on the gas it seems to run fine but at low constant speed it bucks horribly. Any thoughts. Thanks in advance. Ps I’ve been working on vacum leaks and thought I was good on that issue.thanks dave
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06-24-2018, 03:17 PM
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Registered
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Smoke, please tell us why you replaced your O2 sensor and how it ran before? Thanks, John/CT
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06-24-2018, 04:10 PM
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Registered
Join Date: Oct 2006
Location: MYR S.C.
Posts: 17,321
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its running too rich
check your control pressures then set the mixture do a tune up first, plugs cap rotor and timing.
__________________
86 930 94kmiles [_  _] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD88 BMW 325is 200K+ SOLD 03 BMW 330CI 220K:: [_ _] RUNNING: [__] NOT RUNNING:01 suburban 330K:: [_ _] RUNNING: [__] NOT RUNNING:RACE CAR:: sold |
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06-25-2018, 02:56 AM
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Registered
Join Date: Dec 1999
Location: Novato, CA
Posts: 4,740
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Surging on startup has nothing to do with your 02 sensor since it hasn't had enough time to warm up to make enough voltage for the computer to work with. You would notice it surging even if the 02 were disconnected.
I do agree, it is way too rich. Cheers, Joe |
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06-25-2018, 05:50 PM
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