S2000 Under The Hood S2000 Technical and Mechanical discussions.

Car run too rich after clutch changing

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Old 08-07-2018, 08:19 AM
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Default Car run too rich after clutch changing

Hi, my s2000 run very rich after i change my clutch, AFR around 12-12.5 at idle and the same when im cruising, car run great before and tuned 2 day before my clutch blow out

setup:
comptech novi1000 aftercooled
aem ems 2
id1000 injector

someone have an idea ?? Thanks
Old 08-07-2018, 11:16 AM
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Did you by any chance leave a connector unplugged when you refitted the gearbox? Thinking a Lambda sensor possibly....
Old 08-07-2018, 01:15 PM
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In a stock tuned S2000 I'd suspect the primary 02 sensor, but since you have an aftermarket system there could be multiple reasons for the change and you would think that you could tune it for a leaner setting.
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