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Re: 94 Camaro 3.4 High NOx teaser
Posted to Emissions Forum on 1/15/2010 1 Reply

Kelly,

That is a knock sensor module. The 66U ECM has an EEPROM.

There was/is a calibration for lean running. Not that I'm saying that is your problem... I'm assuming you took a quick peek at the injector current.

Having to deal with mickey mouse catalys... Login to read more.

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