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5 check engine light after valve cover gasket

678 Views 1 Reply 2 Participants Last post by  NickR
I just changed my valver cover gasket, throttle body gasket, and intake manifold gasket and all my spark plugs now my check engine light is on throwing 5 codes:
'NE1' camshaft/crankshaft position sensor
Knock sensor
Volume Air Flow sensor (VAF)
Intake air temperature sensor (IAT)

Exhaust gas recirculation (EGR) system

I drove it and it seems fine.
I also used electrical grease on the connections if that helps.
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Maybe old codes, or maybe you started the car with all that stuff disconnected? In either case, I would clear the codes (disconnect battery, press brake pedal for 10 seconds), go for a drive, then check them again. Or did you already try that?
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